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Wriggle Nightbug (リグル・ナイトバグ Riguru Naitobagu) is a firefly youkai capable of controlling other insects. She first appears in Imperishable Night as both the Stage 1 midboss and boss. She also appears as a Stage 1 boss in Shoot the Bullet and has made appearances in various official Touhou manga and literary works.
| Wriggle Nightbug | |
|---|---|
| Origin | |
| Origin | Touhou |
| Creator | ZUN |
| First Appearance | Touhou 08: Imperishable Night |
| Voiced by | Fanmade Series: Rikako Aida, Maya Yoshioka, Azumi Waki, Yu Sasahara, Shino Shimoji, Yuuki Takada |
| Characteristics | |
| Species | Firefly Youkai |
| Gender | Female |
| Pronouns | She/Her |
| Sexuality | Unknown |
| Age | Unknown |
| Birthday | Unknown |
| Height | Unknown |
| Weight | Unknown |
| Ethnicity | Unknown |
| Status | Alive |
| Alignment | Neutral Evil |
| Archetype | Monster |
| Time Period | Non-linear |
| Language | Japanese |
| Combat Style | Magical Combat, Insect Combat |
| Homeworld | Gensokyo |
| Relationships | |
| Affiliations | Rumia, Mystia Lorelei, Three Fairies of Light |
| Enemies | Reimu Hakurei (Formerly), Yukari Yakumo (Formerly), Marisa Kirisame (Formerly), Alice Margatroid (Formerly), Sakuya Izayoi (Formerly), Remilia Scarlet (Formerly), Youmu Konpaku (Formerly), Yuyuko Saigyouji (Formerly) |
Her full name is Wriggle Nightbug (リグル・ナイトバグ). "Wriggle" derives from the English word commonly used to describe the movement of bugs along the ground. "Nightbug" is a portmanteau of "night" and "bug", referencing her nature as a firefly.
General Description: Wriggle is a figure with teal hair and blue eyes. She has bug-like antennae and, according to Hieda no Akyuu, possesses insect wings despite her cape being shaped to resemble them. Aside from her insect appendages, she looks like an average human.
Facial Features: She has teal hair and blue eyes. Bug-like antennae extend from her head.
Clothing/Outfit:
Physical Traits: Akyuu describes her as having actual wings, though her cape is visually designed to mimic wing shapes. Her childlike appearance reflects her status as an insect youkai.
Special Features: Her antennae and wings are the primary indicators of her nature as an insect youkai. Her overall appearance is otherwise human.
Wriggle takes part with them in scaring Youmu Konpaku as part of a "test of courage".
Name: Wriggle Nightbug[1]
Titles
Origin: Touhou
Overall Series: Touhou Project
First Appearance: Touhou 08: Imperishable Night
Latest Appearance: Foul Detective Satori (Cameo in Chapter 12)
Company: Team Shanghai Alice
Creator: ZUN
Actor: The following voice acted roles are all from fan-made series not apart of any canonical Touhou works.
Gender: Female
Sexuality: Unknown
Pronouns: She/Her
Handedness: Right-Handed
Age: Unknown
Birthday: Unknown
Time Period: The world of Gensokyo itself is in a non-linear time period
Timeline: Main Timeline
Homeworld: Gensokyo
Residence: Forests in Gensokyo
Story Role: Stage 1 Midboss & Stage 1 Boss
Legacy: Local Legacy (Known locally as a insect beast youkai)
Influence: Event Influence
Language: Japanese
Ethnicity: Unknown
Religion: N/A (Youkais lack faith, not caring about religious related values[4])
Classification: Night Bug0
Species: Firefly Youkai
State of Being: Regular
Physiology: Humanoid Physiology
In-Universe Creator: Unknown
Occupation: N/A
Combat Style: Magical Combat/Insect Combat
Affiliations: Rumia, Mystia Lorelei, Three Fairies of Light
Enemies: Reimu Hakurei (Formerly), Yukari Yakumo (Formerly), Marisa Kirisame (Formerly), Alice Margatroid (Formerly), Sakuya Izayoi (Formerly), Remilia Scarlet (Formerly), Youmu Konpaku (Formerly), Yuyuko Saigyouji (Formerly)
Height: Unknown
Weight: Unknown
Status: Alive
Threat Level: Street Threat
Archetype: Monster
Grade: A
Tier: At least 9-C, Higher with Swam of Insects, Far Higher with Spiritual Power
Cardinality: Finite
Dimensionality: 3-D
Power Source: Magic & Fear
Attack Potency: At least Bone level (Despite having an appearance to that similar of a human child[7], it's noted that even with a youkai's appearance, a human's power can't compare to a youkai's[8]. Youkais can easily kill humans[9], with it being noted that if it came to open conflict between humans and youkai, they would probably wipe out the village in the blink of an eye[10]. Youkai have stronger bodies than humans[5]. Youkai are noted to be physically stronger than humans[11]), Higher with Swam of Insects (When Wriggle summons a swam of insects[2], humans can do nothing to her[12]), Far Higher with Spiritual Power (Noted how even Yumemi Okazaki's scientific magic truly pales in comparison with the real thing[13], which Yumemi noted to not make light of the power of her science as she could blow up the planet at any moment[14]). Can ignore covnentional durability with Magic (Magic exists outside of the Grand Unified Theory[15], a theory with any model that merges electromagnetic, weak, and strong forces into a single force at high energies, unifying gravity with the electronuclear interaction, providing a more comprehensive theory of everything. Yumemi explains that on her world, all power can be explained by the Grand Unified Theory, however she posits an existence of a power not covered by the Theory: the power of magic[16]. Yumemi also explains that in the world of Gensokyo, magic unifies everything[17]. Magic is noted by Yumemi to have close ties with religion[18]. The second layer of reality is spirit and magic, while the first layer is where all things within the laws of physics presides, putting attacks with magic outside of the conventional laws of physics[19])
Durability: At least Bone level, Far Higher with Spiritual Power. Her Youkai Physiology makes her very difficult to kill (It's noted that one cannot defeat spirits or devilish powers without a weapon with an unnatural amount of spiritual power such as the Yin-Yang Orb[20]. Physical attacks such as a whacking a sake bottle over the head are considered violent methods that wouldn't work on youkai[21], with it only being spiritual attacks that cause fatal wounds to youkai[5]. When attempting to exterminate a youkai, one does not use weapons that cause physical damage, instead weapons with an "origin" are more preferable[11]. In the world beyond (Gensokyo), physical form has no meaning for all non-human entities[22])
Striking Strength: At least Bone Class
Lifting Strength: At least Superhuman Class
Travel Speed: At least Superhuman (Can keep up with other characters flight speeds, where they can reach across long distances due to being able to fly[23])
Attack Speed: At least Superhuman. Magic Attacks lack a defined speed (Magic exists outside of the Grand Unified Theory[24], a theory with any model that merges electromagnetic, weak, and strong forces into a single force at high energies, unifying gravity with the electronuclear interaction, providing a more comprehensive theory of everything. Yumemi explains that on her world, all power can be explained by the Grand Unified Theory, however she posits an existence of a power not covered by the Theory: the power of magic[25]. Yumemi also explains that in the world of Gensokyo, magic unifies everything[26]. Magic is noted by Yumemi to have close ties with religion[27])
Reaction Speed: At least Superhuman
Stamina: Superhuman (Youkai have stronger bodies than humans[5]. Youkais within Gensokyo do not have much demand for medicine for physical illnesses as they are comprised mostly of spirit, thus they are always fit and robust[28])
Range: Standard Melee. At least Tens of Meters (Shoots out a rapid fire of dozens of energy bullets to form a circle that then all spread out covering the screen[29]), Cross-Dimensional with Battlefield Removal (Ordinary youkai[30], can send themself and their opponent to a different battlefield[31])
Intelligence: Below Average Intelligence (Wriggle is noted to be a bit slow in the head[32])
Knowledge: At least Master level in regards to insects (Wriggle is a master at controlling her insects, being considered to be unstoppable if she controls a horde of harvest mites), Novice level otherwise
Wriggle can control insects of all varieties at will. This includes fireflies, moths, centipedes, crickets, and venomous insects such as hornets. She always appears accompanied by a large number of bugs, which humans find particularly unpleasant. Hieda no Akyuu describes her as essentially the leader of insects.
Her spell cards utilize synchronized flickering of firefly swarms and massive bug swarms. Marisa Kirisame notes that experiencing these attacks amounts to insects completely obscuring one's field of vision.
While individual insects have little power, their swarms are difficult to deal with. Hornets can kill a human with a single sting. Wriggle's most dangerous insect is the harvest mite—invisible to the naked eye—which causes a deadly fever with no effective treatment. She summons swarms of them when particularly upset or serious.


To unlock: Beat main game through Final B with more than 2 teams, difficulty doesn't matter.

| 蛍符「地上の流星」 | Firefly Sign "Meteors on Earth" | |
|---|---|---|
| • 使用者 リグル・ナイトバグ | • User: Wriggle Nightbug | |
| • 備考 永夜異変にて確認 | • Notes: Confirmed during the Eternal Night Incident | |
| • 参考度 ★★ | • Reference Level: ★★ | |
| 蛍の光を流星に見立てたスペル。蛍は定期的に明滅するから、むしろ簡単。 | A spell that likens the fireflies' light to shooting stars. The fireflies flicker at regular intervals, so it's honestly really simple. | |
| 流星と言うには漂い方がふよふよしすぎていると思う。 | I think they float around way too lazily to be shooting stars. | |
| やっぱり星はシュッと流れて欲しいもんだ。 | Stars definitely oughta go woosh through the air. | |

| 蛍符「リトルバグストーム」 | Firefly Sign "Little Bug Storm"[138] | |
|---|---|---|
| • 使用者 リグル・ナイトバグ | • User: Wriggle Nightbug | |
| • 備考 永夜異変にて確認、バグタイプ | • Notes: Confirmed during the Eternal Night Incident, bug type | |
| • 嫌悪度 ★★★ | • Disgust Level: ★★★ | |
| 蟲の大群が眼前を覆い尽くす。 | A swarm of insects completely covers your field of vision. | |
| きもい。 | Gross. | |
| 目の前が不規則な色で覆い尽くされる事を、バグったと言おう。バグタイプ筆頭のスペル。 | Let's call it "bugging" when everything you can see is covered in disorganized colors. This'll be the first bug-type spell. | |

| 隠蟲「永夜蟄居」 | Hidden Bug "Endless Night Seclusion" | |
|---|---|---|
| • 使用者 リグル・ナイトバグ | • User: Wriggle Nightbug | |
| • 備考 春先になると偶に見かける、バグタイプ | • Notes: Sometimes seen at the beginning of spring, bug type | |
| • もっそ嫌悪度 ★★★★★ | • Mega-Disgust Level ★★★★★ | |
| 勢いよくバグるスペルカード。 | A Spell Card that bugs out like there's no tomorrow. | |
| 何で蟲って蛹のまま、大人しく生活できないのか。 | Why can't insects just stay in their cocoons and lead a quiet life? | |
| このスペルカードは冬眠から目覚めた蟲達のウォーミングアップの様なもんらしい。 | Apparently, this Spell Card is like a big warm-up routine for insects that are waking up from hibernation. | |
| 大自然の力って事だ。参考にすべき魔法じゃないな。 | The power of nature, in short. This isn't any kind of magic that I should try referencing. | |
Standard Tactics: When Wriggle is upset and serious she summons a swarm of harvest mites which can cause deadly fever to humans[2]. Otherwise she utilizes different insects for attacks while also utilizing danmaku and magic attacks.
Weaknesses
The Touhou Project franchise canoncity mainly falls under any media worked on by ZUN are official and canon to the overall lineup.
There are various aspects constantly debated about within the canon:
Media like PC-98, has been noted by ZUN to be ignored as one can ignore derivative works[153]. He has also said that anything prior to Embodiment of Scarlet Devil can for the most part be ignored and one can think of Embodiment of Scarlet Devil as the starting from a clean slate and starting a new series[154], he's also referred to Highly Responsive to Prayers as a study product[155]. With this in mind, one would assume that PC-98 is thus non-canon to the Windows continuity of games.
However, ZUN has also directly stated PC-98 games are the same world as the Windows Games, stating that any contradictions that exist from PC-98 can be ignored from the retcon in Windows Era[156]. While one argues ZUN noting the works are derivative works to be ignored and Embodiment of the Scarlet Devil should be seen as the starting point, these statements are moreso telling a fan to not worry about having to play PC-98 games or learn more about their stories.
It's also been noted in Embodiment of Scarlet Devil's おまけ.txt that the game chronologically is not too far from the previous title, which would be Mystic Square, the PC-98 title[157]. ZUN has also directly brought back characters from PC-98 games, noting he wanted to bring back characters from before Embodiment of Scarlet Devil and notes any of the other older characters that don't appear have probably retired by now and are warmly watching over things from various places nowadays[158]. When asked where Mima from PC-98 has gone, ZUN notes that he doesn't bring them back due to making things complicated and having potentially angry fans ask where she has been the entire time, he has also noted that there's not much use for characters like Genji as Reimu can fly now and also notes he is not dead[159]. ZUN has also made mention to Genji probably living in the lake in the back of the shrine[160]. In Touhou Sangetsusei ~ Strange and Bright Nature Deity, Reimu and Marisa were talking about glowing moss with Reimu saying it would be nice to transfer it to the pond in the back of the Hakurei Shrine and Marisa saying that she could make it grow there on the turtles' back, referencing Genji[161].
In Touhou 07 Perfect Cherry Blossom, when Alice meets Reimu, she tells her long time no see, noting that they've met before calling her "old friend"[162]. In Yuuka's mode in Touhou Project - Phantasmagoria of Flower View, Reimu directly references defeating Yuuka back in PC-98[163]. If Yuuka defeats Marisa in the same game, she will note that Marisa has grown up quite a bit, when the last time she's seen her has been in PC-98[164].
Seeing as ZUN himself has directly said both PC-98 and Windows are in the same world and that characters directly acknowledged PC-98 events and reference characters from it, PC-98 is completely canon and any contradictions PC-98 have can be ignored.
Touhou 7.5 - Immaterial and Missing Power takes place between Perfect Cherry Blossom and Imperishable Night[165].
In the series, there are multiple playable character routes, including some where the characters fight Reimu herself and defeat her, calling question into what route is canon. ZUN has elaborated that canonically, anytime Reimu and the gang are defeated, they challenge again however many times they want, but on the youkai side, they do not challenge again after being defeated and are not attached to the results of winning or losing[166].
In terms of how playable routes have went, some examples of canonically noted routes:
With some of these examples, it is normally assumed that in some way Reimu has some part in resolving every incident and other routes are dubiously canon depending on what transpired.
There are many cases of weaker humans beating stronger Yokai or vice versa within the Touhou series, this has been elaborated on in Reimu's profile on Perfect Memento in Strict Sense. Reimu introduced the spell card rules as the youkai had no way to defeat the Hakurei shrine maiden, making many youkai feel that their meaning to exist have dissapeared[125]. The rules incoporate the following:
The original draft held these rules[170]:
These rules allows for duels that feel almost like sport rather then a match, and have allowed for weaker fighters to challenge stronger ones, due to this though, it also has become possible for youkai to freely defeat Reimu without worrying about the consequences.
Due to them being written into cards and essentially affecting the ability and power of an attack, the spell cards are likely the thing binding attacks to specific properties.
Parallel Worlds is a topic brought up at some points in the Touhou Project franchise, they are worlds called "Probability Worlds" by Yumemi, stating that those and parallel worlds are one and the same[171]. This essentially means that parallel worlds in Touhou are based on the concept of probability. Yumemi and Chiyuri use a "Probability Space Hypervessel" in order to travel to alternate worlds and time periods[172], further showcasing that probabiliy serves an importance.
There[173] are[174] multiple[175] occasions[176] of[177]characters[178] commenting[179] on[180] humans like[181] Reimu[182] being strong[183]. Despite this Reimu showcases physical strength that isn't superhuman, such as the fact that she cannot cut a bamboo stick while Fujiwara direclty does in front of her.
This is due to the difference between magical and physical strength.
In works like Symposium of Post-mysticism, Yuugi Hoshiguma's profile has Suika directly state that Yuugi is weaker then her in magical powers, but stronger than her physically[184], lining a clear difference between magical and physical strength.
While one can be physically stronger then another, such as how Onis are physically the strongest, magic users are still able to keep up with them due to using a different form of attack.
An example can be found with Yuugi herself, when Reimu fights against her in Subterranean Animism[185], with her acknolwedging her strength[186], something Yuugi only does to those who are truly strong[184]. This establishes even with spellcard rules, Yuugi considers Reimu a strong fighter. Reimu herself is very clearly not at an oni's physical strength, as she cannot do the things they can, however, her magical strength allows her to keep up with them.
To defend against magical based properties requires Non-Standard Defenses as it is acknowledged as not being something of standard physicality.
In Chapter 27 of Curiosities of Lotus Asia, Reimu proceeds to explain how reality works to Rinnosuke and Marisa, where she explains in-depth the three layers of reality.
This conversation started from discussing the mechanism of fortune, where Rinnosuke attempted to posit that the future is predetermined and that Reimu's luck was her being able to calculate in an instant the predetermined future, however Reimu had a different explanation requiring her to lecture on the mechanisms of probability[187], in her explanation, the world is made up of three layers: the physical layer that moves in accuracy with the laws of physics, the second layer that moves with the spirit, and the third layer of memory which is the recollection of events that lies within all things[19]. The memory layer rejects the loop of the physical and mental layers, the two layers the youkai conceive of the world which is why they believe history repeats itself and the future is predetermined. Since it's only possible to add to the memory layer, it's possible to completely recreate the past.
While the physical layer follows the laws of physics, the mental layer interprets the outcomes and the memory layer alters the probability, essentially creating the future, since it's impossible for memories to raech the same state as a point in the past, the future is not predetermined, thus when Reimu is able to predict how the dice will fall, she's not predicting the fall of the dice, the dice members the fact that she predicted how the dice would fall, thus due to this, Reimu entering the memory of the die-face greatly skews the results in Reimu's favor, where the results side with Reimu[188].
Thus the memory layer is essentially the most important layer that rejects the notion of loops from the previous two layers.
Wrrigle in Bohemian Archive in Japanese Red playing with her insects
Wriggle in Bohemian Archive in Japanese Red complaining to Aya
Wriggle's fortune slip in Whispered Oracle of Hakurei Shrine
| Profiles |
| Wriggle Nightbug First stage boss. A youkai firefly.
She possesses ability to manipulate insects Certain insects have poison. If she controls something like a horde of harvest mites, humans can do nothing against her. May be stronger than you think. |
○リグル・ナイトバグ 一面ボス。妖怪蛍。
蟲を操る程度の能力を持つ。 蟲の中には毒をもつ蟲もいる。 恙虫なんか大量に操られたら、人間は手も足も出ない。実は強いかも。 |
Touhou Project - Imperishable Night Demo |
| Stage 1 Boss, A Bug of Light Wriggling in the Dark Wriggle Nightbug Species: Youkai Insect Stage 1 Boss. Insects gather around her. Fireflies can perform their flashing with timed synchronization even in huge swarms, but that is actually because there is a commander like her within them. Those who carelessly regard her as a mere insect will be easy victims to the swarm of insects. When Wriggle is upset and serious, she summons a swarm of harvest mites which can cause deadly fever to humans. She can't stand cold or insecticide. |
○1面ボス 闇に蠢く光の蟲 リグル・ナイトバグ
Wriggle Nightbug 種族:妖蟲 1面ボスである。 彼女の周りには多くの虫が集まる。蛍は大量に集まっても明滅のタイミングがピッタリ揃うが、これは実は彼女の様な命令中枢が中に居るからである。 たかが虫、と思っていると大量の虫に襲われ、ひとたまりも無い。特に彼女を怒らせ本気を出させてしまうと、大量の恙虫を召喚され、人間は高熱を出して死ぬ。 寒さと殺虫剤に弱い。 |
Touhou Project - Imperishable Night |
| I found danmaku patterns crossing the night sky similar to swarms of insects, so I decided to bring out a insectoid youkai. I know that many find insects too gross to be tolerated, so I did my best to draw her as easy-going and cute as I could, but... |
夜空に規則的に飛び交う弾幕が、
虫の大群の様に見えると思ったので虫の妖怪を出しました。 虫が生理的にどうしても無理、という方も多いと思うので、 せめて可愛らしく活動的に……と思って描いたのですが、 スカートではなかったので、当初はよく男の子と間違われてましたね。 女の子もズボン履きますから。 |
Dai Touhouten plaque |
One example of this is believed to be in Touhou 02's Stage 3 Scarlet Dream ~ Scarlet Dream where it displays stars and a space-like effect in the background[190], however this is actually the World of Fantasies, the world that lies between Makai and the human world, with Genji confirming this is definetely not outerspace as Reimu can breathe just fine there[191].
This is an argument that spawns from how small the characters look in different works, though this is moreso due to the "moe" artstyle Touhou tries to capture, in many of the manga characters look far older.
Majority of characters in the series are outright shown to drink alcohol on a daily basis[192], where one needs to be at least 20 years old under Japanese law to drink, where Japanese law requires no underaged characters to be shown drinking. This is even acknowledged in the series itself with a note saying alcohol is only for those over 20 years old[193]. Thus if a character is ever seen drinking alcohol in the series, they are an adult.
The only direct non-adults in the series are Sumireko Usami, Chiyuri Kitashirakawa, and Hieda no Akyuu in her first appearance.
This statement comes from a fan translation that says this in Curiosities of Lotus Asia[194].
While the statement seems clear cut, there is another translation used instead that makes more sense with the sentence.
It instead notes that most youkai concieve of the world through these two layers, which is why they believe the future is pre-determined and history repeats itself[195]. This falls in line with the earlier disucssion of Rinnosuke claiming that he believes the future to be predetermined and Reimu needing to explain to him why that's not the case[187].
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