Background
Trunks is born in November of Age 766 to Vegeta and Bulma, thus making him a Saiyan and Human hybrid, like Gohan. He was an illegitimate child due to the fact that he was conceived as a result of a brief affair between his parents. In his infancy, he was well-loved and doted on by his mother, but it appeared as if his father had little to no parental emotions towards the boy due to the former never wanting to have children and viewing hybrids as a disgrace. However, after the end of the Cell Games, the relationship between his parents improved and they got married, and they began raising Trunks as a family.
During Trunks' childhood, he was lavished with attention by his mother and her family, but Vegeta proved to be stricter regarding Trunks' training and behavior. Trunks came to idolize his father, and they developed a good relationship, despite Vegeta's frequent absences from the family and unwillingness to do certain family activities.
Cell Saga
Two years after Future Trunks' arrival, Trunks is born to Vegeta and Bulma. Initially, Vegeta is uninterested in his son, and Trunks is cared for by Bulma and her family. Although he acknowledged the boy as his child, Vegeta rarely saw Trunks while he and the rest of the Z Fighters prepared for the battle against the androids and eventual conflict with Cell, to the point Trunks would cry whenever Vegeta got close to him.
On the day of the Androids’ arrival, Bulma brings Trunks to introduce him to the Z Fighters. Gohan and Krillin quickly assume Yamcha is the father but are shocked when Goku corrects them by saying Vegeta is the father. Bulma asks how Goku knew this because she wanted to surprise everyone, and Goku lies he was guessing because Trunks looks just like Vegeta. As the Z Fighters face off against Android 19 and 20 (who is actually Dr. Gero), Bulma decides to head to the battlefield to see the Androids and let Vegeta see Trunks, and she forces Yajirobe to accompany her. He is terrified to get too close to the battle and threatens to throw Trunks if she doesn't any stop, but she threatens to tell Vegeta he is being mean to Trunks. During the fight with Dr. Gero, Trunks and his mother are briefly put in danger when Android 20 destroys the vehicle they were traveling in. However, they are saved by Future Trunks, who intervened when Vegeta failed due to his indifference towards Bulma and their son. Piccolo reveals Future Trunks' identity as his son's future counterpart to Vegeta when he referred to Future Trunks by name and later revealed Future Trunks' identity to Bulma, who was relieved to know that Trunks wouldn't grow up to look like his father. Gohan then takes Trunks and Bulma back to Capsule Corp. for their safety. A couple of days later, Trunks goes with his mother to deliver the detonation device to Krillin and then heads to The Lookout while Vegeta and Future Trunks battle Cell. While waiting for Cell's broadcast for the Cell Games at home, Trunks playfully pulls his counterpart's hair, which everyone saves for Future Trunks finds humorous. After Cell was defeated, Trunks is seen learning how to walk, and Vegeta starts to take a more active role in raising Trunks, having come to accept him as his son after Cell killed Future Trunks during the Cell Games, and this act left Vegeta enraged and guilt-ridden.
Great Saiyaman Saga
Seven years following Cell's defeat, Trunks takes a much larger role. Trunks is eight years old and fantastically strong for his age. He was trained by Vegeta since he learned how to walk. As a result, he was able to transform into a Super Saiyan at age 8, as well as become acclimated to the state without Vegeta's knowledge. This is first shown on-screen while he is training in a Gravity Room with Vegeta, when he cannot handle the gravity in his normal state. He then transforms out of nowhere and leaps around naturally in gravity that at first was supposedly overwhelming him. This comes as a massive shock to Vegeta considering his young age but makes him proud to see his son becoming stronger. Vegeta asks Trunks to attack him to test Trunks' strength, but when Trunks hesitates, Vegeta promises to take him to the amusement park if he landed one punch on him. Trunks succeeds but is punched down by accident and reveals he is a little stronger than Goten for being older.
World Tournament Saga
On the day of the 25th World Martial Arts Tournament, Trunks is dismayed to be sent to the Junior Division and easily makes it all the way to the grand finals and becomes the new junior champion by defeating his best friend Goten, the second son of Goku and Chi-Chi (by becoming a Super Saiyan, firing an energy blast which knocked Goten out of the ring, and using his left arm; all three of which Trunks had agreed not to do, though Goten had cheated too and became a Super Saiyan earlier in the fight). When Trunks is set up against Mr. Satan, Satan asks him to only lightly tap in on the face, knowing how much power Trunks has. However, even Trunks' light tap is enough to launch Mr. Satan out of the ring, allowing Trunks to win the match. However, the crowd thinks Mr. Satan did it deliberately to be nice to Trunks.
He convinces Goten to secretly compete in the adult division disguised as Mighty Mask, but Android 18 realizes this and blows their cover with a Destructo Disc while in the match, disqualifying them and the boys flee to avoid getting in trouble.
Majin Buu Saga
Shortly after Trunks learned about Majin Buu from Videl, he and Goten eagerly fly to the battlefield and find Piccolo and Krillin turned into as stone by Dabura. Trunks accidentally breaks Piccolo. After Krillin returns to normal when Majin Buu kills Dabura, Trunks thinks he killed Piccolo and asks Goten to keep it a secret from Vegeta. He is then shocked to see Piccolo is alive moments before Vegeta shows up to fight Majin Buu. Trunks cheers for his father but quickly realizes Vegeta cannot win, and he tries to help his father battle the monster. As Majin Buu torments Vegeta, Trunks rushes in and saves him. Vegeta orders Trunks to escape for his own safety but Trunks wants to stay and help his father fight Majin Buu and is hugged for the first time by his father, but he and Goten are knocked out by Vegeta who blew himself up to try to destroy Majin Buu, albeit failing. The boys are taken to the Lookout to take shelter from Majin Buu. When they wake up, the boys learn that Vegeta and Gohan are dead, which makes them cry as Trunks becomes upset of his father's death, and Trunks angrily asks Goku why he did not save his father. Goku tells them about the Fusion Dance to defeat Majin Buu but Trunks has doubts. Babidi makes an announcement to the world that if Goten, Trunks and Piccolo do not come out of hiding they are going to destroy more cities. The boys witness Majin Buu murder hundreds of innocent people and are determined to defeat the monster. Then Babidi announces he has learned Trunks lives in West City and intends to destroy it next, making him fear for his grandparents who are still there. Goku orders Trunks to rush to Capsule Corporation to get the Dragon Radar. Goku intercepts Babidi and Majin Buu from following Trunks and shows them the Super Saiyan 3 form. Majin Buu and Goku fight while Trunks gets the Dragon Radar. Later, Trunks returns to the Lookout with the Dragon Radar and shows Goku his respect. Then, Goku shows them the Fusion Dance and, only in the anime, shows them Super Saiyan 3. However, Goku's time on Earth is ended and he leaves Piccolo to teach the boys the rest of the Fusion Dance. Everyone on Kami's Lookout says goodbye to Goku as he leaves with Fortuneteller Baba to the Other World. Piccolo and Krillin take over teaching the Fusion Dance to the boys.
When it is time for the fusion, Trunks and Goten's first attempt fails due to Trunks making a mistake with his fingers. Their second attempt also fails when their index fingers don't touch, much to Piccolo's frustration at the failed attempts. The third attempt successfully creates Gotenks, who then rushes to fight Majin Buu but is quickly beaten. After a little training, they fuse again but due to Gotenks wasting time by playing around, they defuse before fighting Majin Buu. When Super Buu arrives at the Lookout, Trunks and Goten enter the Hyperbolic Time Chamber to train. Piccolo warns them Super Buu will enter the room in a minute, which gives them six hours in the room.
Later, Super Buu and Piccolo enter, and just before the two boys get to fuse, Super Buu punches Trunks who angrily tells him to wait. He and Goten soon fuse into Gotenks, but are not strong enough to beat him. When Gotenks pretended to be tired and low on energy, Piccolo destroys the entrance to the chamber, but Super Buu escapes and eats the remaining Z-Fighters and support on the Lookout (except Dende who was thrown off by Mr. Popo). Gotenks finally escapes, thanks to his Super Saiyan 3 transformation and, after learning Super Buu turned everyone into chocolate and ate them, Gotenks angrily vows to kill him. Gotenks fights Super Buu again, almost defeating him until they defuse right at the killing blow. Trunks and Goten witness Gohan returning from the Sacred World of the Kai with his new powers and easily overpowering Super Buu. When Super Buu escapes, the crew find Dende, picking up Mr. Satan and his dog along the way. When Super Buu asks for a rematch against Gotenks, they fuse, but Super Buu tricks them and absorbs them to become stronger. After being set free from Super Buu by the newly revived Goku and the still deceased Vegeta, Trunks is killed along with Goten, Piccolo, and Gohan when Kid Buu uses the Planet Burst attack and destroys the Earth.
Trunks is later revived by the Namekian Dragon Balls, and lends energy to Goku's Super Spirit Bomb when Vegeta requests energy to all the Earthlings and its creatures. He and Goten also get a group of people to lend a hand as well. When Kid Buu is decimated, Trunks and his friends return to Kami's Lookout, soon joined by Vegeta, Goku, Mr. Buu, Dende, and Mr. Satan. He is thrilled to see his father again and runs to him with his mother, rejoicing in open arms. The peace is disrupted when Trunks spots Buu near Mr. Satan, not knowing Buu has turned to the good side. In anger, Trunks prepares an energy attack to fire, but Goku and Vegeta manage to explain the situation, and the group discusses their adventure. Trunks is later seen at a party at his home in celebration of their victory.
God of Destruction Beerus Saga
After the battle with Kid Buu, Trunks and Goten wish to give Videl a wedding present, but Goten cannot afford anything substantial. They start by getting jewelry, but it is too much for Goten. Almost giving up, Trunks tells Goten what Bulma told him about cosmetics that Videl needs cosmetics to keep her skin smooth and wrinkle-free. They hear from an older man in a store complaining about the cosmetics' prices, bragging that his hot springs have water that can turn even the most wrinkled skin as smooth as silk, with both Trunks and Goten deeming it an excellent gift for Videl.
After following the directions given to them by the old man, Trunks and Goten find the hot springs where the water is located, but after seeing many people already using it, they proceed to the nearest river and collect a jug's worth of water, until they are attacked by a giant snake. Dodging the snake's swift movements, Trunks and Goten protect the jug until Trunks finally defeats the snake and the two proceed to fly back to Gohan's house in order to drop off the present.
The next day, Trunks goes to a resort area with his parents for a family vacation. He was delighted to have his first family vacation with both of his parents, as Vegeta had taken time off from training to fulfill his promise to Trunks from their training prior to the 25th World Martial Arts Tournament. Even though Vegeta takes off after being annoyed by the public, Trunks had a great time spending time with his parents, especially Vegeta. Trunks goes to his mother's birthday party and meets Goten there, and they both go off below the deck so Trunks can show Goten the Dragon Balls. He shows him how the container, where the Dragon Balls were, worked by showing him the flaws of Bulma's inventions.
On their way back to the deck, they encounter Pilaf, Mai, and Shu on the side of Bulma's ship. Trunks and Goten rescued them and offered them food, which Pilaf declines. However, even though Pilaf declined the food offer, Trunks and Goten still brought food to Pilaf, Shu, and Mai. Trunks and Goten play games on during the party. Trunks and Goten started to play with water guns throughout the ship. While playing, Trunks shoots Beerus in the face by accident and gets him angry. Beerus decides to blow up the Earth after Majin Buu eats all the pudding, prompting the Z Fighters to fight him to stop him. Trunks and Goten fuse into Gotenks, but their attacks have no effect on Beerus, and is left defeated. Trunks stays in the sidelines as Vegeta fights Beerus in anger for hitting Bulma, but he is also defeated. When Goku finally arrives and has Shenron explain the process of creating a Super Saiyan God, Trunks lends his energy along with Vegeta, Gohan, Goten, and the unborn Pan to Goku, transforming him into a deity. Trunks watches the battle from a distance due to having lost the ability to fly due to giving up his energy and, although Goku is defeated, Beerus decides not to blow up Earth at the moment and leaves.
Golden Frieza Saga
When Jaco arrives on Earth to warn Bulma of the upcoming Frieza arriving on Earth for vengeance, he and Goten come into contact into him when looks for Bulma. He then touches his skin and face to make sure they are not tights and a mask with Goten accidentally taking off one of his wireless radios on his ears. They then play around with his ship, and Jaco encourages them to play, which leads to them accidentally closing the hatch and crashing it into the pond resulting in them being sent to their rooms as punishment.
Later on, while the Z Fighters were fighting Frieza and his forces, Trunks and Goten were playing ball outside when they sensed Tagoma's ki and decided to join in the fight. After fighting Ginyu in Tagoma's body as Gotenks and defusing from the fusion, Trunks and Goten go hide with Bulma and Jaco. In desperate need of Goku and Vegeta as the Z Fighters are being defeated, Trunks helps Bulma and Goten summon Whis. However, when Goku and Vegeta arrive, Goku orders Trunks and Goten to go to The Lookout to tell Dende what happened, and additionally, the location is too dangerous for them. Trunks refuses until Vegeta gives him a disciplinary glare that prompts Trunks to oblige.
He is killed when the planet explodes, but Whis uses his Temporal Do-Over technique to undo the damage, undoing Trunks' death in the process. After killing Frieza, Goku tells Trunks all about what happened while they were away at the Capsule Corporation. Trunks later said that he and Goten would take of Frieza next time he gets resurrected and will finish him off by slicing him in half. Everyone acts surprised because that's something that Future Trunks already did in the past but the present Trunks hasn't heard about it. He later attends the party thrown by Bulma with his friends and family.
Universe 6 Saga
Trunks is present with his friends and family, cheering on the team of Universe 7 during the Tournament of Destroyers. Trunks is also present as Beerus and Whis use the Super Dragon Balls to summon Super Shenron, then returns to Earth.
Copy Vegeta Saga
Trunks attends the Universe 7 victory celebration with his friends and family, being told by Beerus to protect the fact that Monaka is weak as a secret from Goku. When Goku shows desperation to fight with Monaka, Goten suggests that Monaka could have the ability to "transform." Trunks then whispers something in Beerus' ear. While Goku was being distracted, Beerus dons the life-size Monaka costume created by Mr. Satan and fights with Goku. Eventually, the battle is over. The situation ends on a good note as Goku never realized that Monaka was an amateur and is even more motivated to train after fighting with him.
While Goten and Trunks are flying towards Capsule Corp, they notice Monaka's delivery truck but finding out that Monaka is not present. Goten and Trunks then make their way inside the back of Monaka's truck, having fun with the items present in there. When they blow up a blow-up doll, the force causes the truck to bounce off the ground, closing the door and trapping them inside. Trunks prepares to blow the door open but does not want Monaka to get in trouble for having the truck damaged. They then wait for Monaka, who immediately climbs in his truck and flies off into space with the two boys still inside. On the way to Planet Potaufeu, Goten and Trunks are freezing in the truck due to being in outer space. Monaka then arrives to Potaufeu, and opens the back door, discovering Goten and Trunks frozen solid and manages to thaw them. Potage, the planet's only inhabitant, appears and greets Monaka, and the intergalactic criminal Gryll confronts the group with his henchmen. Goten and Trunks realize Potage is in trouble, and easily defeat the henchmen, forcing them to retreat. They later reappear, holding the key to the seal of the "Superhuman Water." Goten and Trunks prepare to take the key back, but they still realize that Monaka has been taken hostage. Goten is tied up along with Trunks and Potage, as Gryll opens the seal to the Superhuman Water. Later, Goten and Trunks are being chased, while carrying Potage and Monaka by Gryll and his henchmen, who are now purple. Trunks is then knocked down by an attack and is attacked again, but he is saved by Vegeta and Jaco's timely arrival, while Vegeta deflects the attack.
Trunks witnesses Vegeta easily defeating Gryll's henchmen and being absorbed by the "Superhuman Water" and an exact copy of him is created. Trunks is about to be absorbed by Copy-Vegeta next, but Copy-Vegeta hesitates before attacking him. He is then saved by Jaco. Trunks later retreats while carrying Potage and a drained Vegeta, while Goten carries Monaka, and Jaco also retreats. In a secure spot, Potage explains the truth about the "Superhuman Water", which is actually a weapon named Commeson, and they learn that Copy-Vegeta must be defeated in order to save Vegeta's life. Copy-Vegeta later confronts the two boys, who then fuse into Gotenks and engage in battle with him. Even as a Super Saiyan 3, Gotenks cannot deal any damage to Copy-Vegeta, and is defeated by a few blows. Fallen, Goten and Trunks are about to be finished off by Copy-Vegeta, but they are saved by Goku's timely arrival. Trunks tries to inform Goku to defeat Copy-Vegeta quickly, as he is an impostor.
Trunks watches as Goku, and Copy-Vegeta fight an evenly matched battle. As Vegeta begins to instinctively cheer for his copy to win, Trunks reminds his father of the circumstances. Both Goku and Copy-Vegeta then transform into a Super Saiyan Blue, and Trunks realizes that the fight could take too long, and asks Potage if there is another way to save Vegeta. Potage answers that if the core is crushed, the copy will become weaker. Trunks takes Potage to find the core of Commeson, which was Copy-Gryll, while Goten and Jaco accompany them. They notice that the core has left the spot where Copy-Gryll was knocked into. As the Commeson core tries to attack, Goten, Trunks, and Jaco blast it, which passes through it. They then run away from Commeson. Trunks tells Jaco, who is worried about a copy of him being made that he would quickly defeat his copy. Trunks begins to notice Vegeta's ki disappearing and rushes to his father's side. As Goku and Copy-Vegeta's battle causes a bright light and a shockwave, Commeson tries to attack Trunks from behind, but Vegeta stands in-between them as his body is disappearing. Monaka casually and nonchalantly steps on the core, which destroys it, and damages Copy-Vegeta, and Goku is able to finish him off. With Vegeta's life saved, Trunks happily hugs his father. The group then says goodbye to Potage as they teleport back to Earth, where Trunks is confronted by Bulma about sneaking onto a spacecraft.
"Future" Trunks Saga
Trunks, along with Pilaf, Mai and Shu, are being taught mathematics by a private instructor at Capsule Corp. Pilaf (in a complicated manner) explains to Trunks a math equation he did not know how to solve. As they are eating lunch, Trunks sees Future Trunks' Time Machine land and inspects it, also noticing Future Trunks inside, beaten and unconscious. As Bulma lays Future Trunks in a bed, Trunks is confused on who he is, especially after Pilaf and the gang's assumptions on Future Trunks being his secret illegitimate brother and his parents being a part of a "scandal" as the two boys look very similar. When Bulma calls Goku and Vegeta and tells him about Future Trunks, Trunks is even more confused, as they are also referring to him as "Trunks". As Trunks asks who Future Trunks is, Bulma orders him to power up so Goku can lock onto his ki and teleport back to Earth. When Goku arrives back with Senzu Beans, Bulma feeds one to Future Trunks, and is surprised to see him suddenly wake up and attack Goku.
Trunks is later shocked when he learns that the older Trunks, he sees is himself from the future. Future Trunks and Trunks greet each other. Trunks is last seen checking out the Time Machine with the Pilaf Gang as he is told by his future counterpart they really first met when present Trunks was a baby, to his surprise as Bulma confirms it. He later watches Goku and Future Trunks spar, cheering his other self on and being amazed when the latter pushes Goku back.
He witnesses the arrival of Goku Black and the latter's confrontation with Goku before he is sent back to the future though not before the villain destroys the time machine. He is shown to be somewhat jealous when Mai falls in love with Future Trunks. When the time machine is completely repaired, Trunks proudly exclaims that he helped. He then watches as Future Trunks, Vegeta and Goku travel to the future.
Later on, Trunks is laying outside as he is surprised to see the time machine return, with the beaten Goku, Vegeta and Future Trunks falling out of it. He calls for Bulma as he is greatly worried for his father and his condition. After the trio are given Senzu Beans, Trunks asks them if they were unable to defeat Black, he was quite shocked to learn from them that not only Future Zamasu was his ally and immortal but also transformed into a powerful Super Saiyan called Super Saiyan Rosé.
After Whis, Beerus, Shin, and Goku head to Universe 10 to check on Gowasu's current state, Trunks is seen confronting his future self, asking him if he is sulking because he was defeated and despite that he is still calling himself Trunks. Future Trunks told him politely to leave him alone, Trunks begins to feel very disappointed of his future self and that because of his current state he is unable to protect Future Mai. He told him if he is frustrated and angry, he must defeat him in a battle with Trunks making the first move by punching his future self, he quickly orders Future Trunks to stand up as he is supposed to be a Saiyan. After a brief fight, Future Trunks finally realizes what his past self is trying to teach him: win no matter who the opponent is. He shakes hands with him and thanks him for bringing him back to his senses.
Suddenly, Beerus and the group arrives and informs them of Zamasu's demise, and that the future should be safe, however, Future Trunks still feels uneasy about the situation and decides to head to the future to check things out. Trunks angrily asks him that why he does not believe Beerus. His counterpart responds that he grew up from a different timeline. Future Trunks begins to explain how his life is different from his and that he never met his father as he was killed six months after his birth by Future Android 17 and Future Android 18 and that Future Goku also died due to a heart virus, and that the first time he came to past he gave Goku the heart medicine so it would save him. Trunks asks him why Goku remains deceased in his timeline, referring to a book he read about changing the past that causes changes in the future. Future Trunks told himself despite the world he came from, and his world are the same, they become different worlds as the two of them are living a different life. Trunks feels convinced about his future self's suspicions. He later bides farewell to his future self wishing him the best from the bottom of his heart.
Later, the time machine reappears, Trunks sees that everyone except Future trunks are inside the time machine, Trunks and the Pilaf Gang assumed that the future is safe. To their utter shock, Bulma reveals that the future remained the same as it was with Zamasu and Black causing destruction of the cities and that Future Trunks acted as a shield so they could return to the past in order to find a plan to defeat their enemies. Upon witnessing Goku's critical injuries and his father's serious behavior, Trunks went to visit Goten who was asleep at the that time. After telling the situation to his best friend, Trunks and Goten decided to go the future in order to help his future self, but Bulma tells them that they would only serve no help, and only trust Goku to handle this situation. Soon after Chi-Chi, Gohan, Piccolo and Krillin arrive at Capsule Corporation, Bulma tells everyone about the threats that are terrorizing Future Trunks' world. Upon learning about their enemies' increasing power and immortality and how they are hard to defeat in a head on battle, Piccolo suggested the use of the Evil Containment Wave to seal their enemies, which gives everyone hope as they found a way to save the future.
Trunks later sees Infinite Zamasu appear in the sky laughing manically but soon witnesses his destruction by Future Zeno. After Zamasu disappears, the time machine appears, and he greets his parents before becoming infatuated by Future Mai. He soon sees Goku bring back Future Zeno to the present timeline. Later at dinner, he hears Whis tell Future Trunks about the possibility of going to a new timeline. After Bulma protests this since it would mean dealing with Zamasu again, Trunks asks if things would keep going like this. His pleas are calmed after Whis explains that he will go to that timeline and warn Future Beerus before he disappears due to the Supreme Kai's death and have taken care of Zamasu. Trunks then bids his counterpart farewell, telling him to come by and visit as his other self agrees.
Universal Survival Saga
Trunks is at his house, telling Goten his now pregnant mother is due to give birth any day and he is excited about becoming an older brother. He asks Goten to not go training with Goku for the upcoming Tournament of Power because he is bored training with Mai, Shu, and Pilaf. Goten agrees to stay but Trunks says he can't go far because of the baby. They have a quick spar when Goku unsuccessfully asks Vegeta to participate in the Zeno Expo and Trunks punches Goten who looked away to greet Goku. While recruiting members for Universe 7, Shin suggested Trunks and Goten because they have potential. Still, Goku refuses because their rivalry would be an issue, and they tend to rush into battle straightforwardly. Shortly after, Trunks is told by Vegeta to finish getting the baby's room ready. Trunks orders Goten to put the bed in different spots until Goten complains it doesn't matter where it goes. Gohan comes into the room to tell Trunks the baby has been born, much to Trunks' surprise. Because Gohan forgot to ask if the baby is a boy or girl, Goten says having a brother would mean Trunks can train with him, and Trunks favors this more. However, Gohan says having a sister is fun too because she will be cute like Pan, but Trunks says he prefers training and therefore prefers a brother. When Trunks meets his sister Bulla, he is disappointed she is a girl and refuses to hold her at first, but Bulma puts her in his arms. Trunks becomes softer as Bulla smiles at him, and he asks Vegeta if he wants to hold her. Vegeta asks the baby to be given to him because Trunks isn't holding her properly, prompting Trunks to say Vegeta knows a lot about that. The next day, Trunks tries to change Bulla's diaper but ends up calling Vegeta for help. After Vegeta effortlessly changes the diaper, Trunks smiles and laughs with Bulla and remarks she feels better.
An hour before the tournament is scheduled to begin, Trunks questions why Frieza's picture is on the team member board. Goku tells Bulma that Trunks and Goten don't know about the tournament, and Vegeta says them knowing will be a bother. Bulma lies to Trunks that everyone on the board is invited to a celebration for Bulla's birth, but when Trunks points out Frieza is evil, Vegeta lies that Frieza has redeemed. Goku then asks Trunks if he wants to guard Android 17's island from poachers so 17 can attend. Trunks excitedly agrees and travels with Goten, Krillin, 18, and Marron to the island. 17 leaves with Krillin and 18 whereas Trunks stays on the island with Goten and Marron.
Trunks reappears during the saga's final moments, revealing Goten and himself lived up to their end of the deal. They protected 17's island, only suffering minor injuries from their ordeal. Later he celebrates his baby sister's birth and then with Goten, presumably is trusted to watch 17's island again as he takes his family on a cruise.
Dragon Ball Super: Broly
Trunks calls Bulma from the Capsule Corporation to inform her that the six Dragon Balls collected in her laboratory have been stolen. Trunks sends the surveillance footage through the watch, which reveals that the thieves were wearing Frieza-style armor. The adults instantly recognize what is going on, but none say anything until Bulma ends the call with Trunks.
Super Hero
Just before the final battle begins at the Red Ribbon Army's base, Bulma brings along Trunks, Goten, Krillin, and Android 18. Upon seeing the Gamma androids, Trunks remarks how cool they look. When the monstrous Cell Max emerges and goes on a rampage, the two young Saiyans join in the battle against him. Due to his overwhelming power, Trunks suggests that they fuse but not having done so for such a long time the result ends in failure. Cell Max is eventually defeated however and the two defuse soon afterwards.
Peaceful World Saga
Ten years pass after Kid Buu's defeat, 18-year-old Trunks has a new younger sister named Bulla. He is forced by Vegeta to compete in the 28th World Martial Arts Tournament. Although in the original Japanese dialogue, there is no mention of a girlfriend by Trunks, in the Funimation dub, Trunks promises Goten that he would introduce him to his girlfriend after the tournament (of which his girlfriend is also watching). He ends up being paired up with Otokosuki, who manages to startle Trunks by visually flirting with him. Trunks is not seen competing in this tournament, due to Goku and Uub's leaving the competition at the end of the series. He is seen, however, holding Pan's arm in victory over defeating Goten.
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