My Hero Academia Wiki
My Hero Academia Wiki

I’m telling ya… there’s a big wave of mascot idols coming soon. When it does, I’ll be… HEIKE CRAB!
Monika Kaniyashiki in "Day-Tripping Down to Naniwa"

Monika Kaniyashiki ( (かに) () (しき) モニカ Kaniyashiki Monika?)[2] also known as Kaniko (カニ子 Kaniko?), is a member of the Police Force.[3]


Monika is a short, petite girl with quite a round face and semicircular eyes, their irises white. Her hair is short, and worn styled like a crab’s body in two high bunches with claw-shaped ends, six short tufts protruding out to the sides, and split bangs hanging over each eye.

While working for the Kanidoge chain as a undercover cop, she wears what looks like a knee-length kimono, left open to reveal a combat vest and pale shorts, a pair of black 3/4 leggings underneath. She also sports fingerless gloves and geta on her feet, as well as a striped headband.

When working as a police officer, she wears the standard female uniform of the Japanese police.[4]


Monika's Heikegani face.

Monika has an cheerful and outgoing personality, tending to be laid back, calm, and openly friendly in personality. This makes Monika easily able to socialize with other people, including those she has just met, and her friendly personality makes her prefer to be called Kaniko than by her real name. She is also a jokester, having a goofy sense of humor, and enjoying making jokes to make others laugh, although this doesn't impress anyone, which she attributes to a lack of humor of others. When she feels upset, her face adopts an appearance that resembles the shell of a Heikegani.[2]

Due her behavior, many people do not take her seriously, which is good for her because she is a police officer who usually works undercover. Though she may appear unprofessional, Monika takes her real job very seriously, proving to have great deductive and investigative abilities[5]. She does not hesitate to risk her life to protect others, even if she has to use her Quirk for it, even though this could cause her problems given her cop status.[6]

All in all, even when she works as a police officer, her outgoing personality and joking behavior is still present, which makes her teammates sometimes have trouble knowing when she is serious or when she is joking.[3]


Deductive Skills: Despite the first impressions she may generate, Monika is very intelligent and has a sharp mind. She was able to deduce the method by which the Villain Factory was using the products of the Kanidoge food chain to import and distribute Trigger, as well as discover the main suspect even though he was disguised.[5]


Scissors (ハサミ Hasami?): Monika's Quirk allows her to give her index and middle fingers the properties of a pair of scissors. She can snip through almost anything placed between them. Monika can apply the same power to her legs, allowing her to make larger cuts.[6]

Super Moves

  • Rocket Crab Clip (ケットカニバサミ Roketto Kani Basami?): When she is thrown against a target, Monika uses her legs to make the cut.[7]

Chapter Appearances

Osaka Incident Arc
29. Equipment Issues Absent
30. Cooperation Request Absent
31. Day-Tripping Down to Naniwa! Debut
32. Idols Keep Their Secrets! Appears
33. Stumbling into Nasty Business! Appears
34. Crabtastic Rampage! Appears
35. Blown-Up Hero?! See Ya Later! Appears
Sky Egg Arc
36. Must-Have Merchandise Absent
37. Public and Private Fantasy
38. High-Speed Flashback
39. A Rational Man Absent
40. A Rational Team-Up Absent
41. Ultimate Move! Absent
42. Mixer Absent
43. Casanova Absent
44. One Outrageous Traveler Absent
45. The Man Returns Absent
46. Christmas Eve Hero Absent
47. Farewell Party! Appears
48. Investigation Start! Steamy Romance Spotted?! Appears
49. Zero Hour Appears
50. Defend the Tower! Absent
51. I Do What I Can Absent
52. Balloon Soul Absent
53. Limits and Catastrophe Absent
54. Hotline Absent
55. This Is a Hero!! Appears
56. I'm No Hero Absent
57. Explosive Man Appears
58. International Flight Home Absent
Naruhata Lockdown Arc
95. Moon Absent
96. Negotiations Absent
97. Pursuers Absent
98. Intentional Persuasion Technique Absent
99. Invasion of the Faceless Absent
100. Super Explosion! Absent
101. Fly at Night Absent
102. Intruder Absent
103. Aim for the Head Absent
104. This Face Absent
105. Escape Start Absent
106. Chase of Crawlers Absent
107. A Hundred Hits Absent
108. Things That Live in the Abyss Absent
109. Encirclement Absent
110. Careless Absent
111. Return of the Fist Absent
112. The Ends to Miscalculation Absent
113. The Worst Villain Absent
114. Dogfight Absent
115. Conclusion to Power Absent
116. The Final Lesson Absent
117. The Absolute Worst One Absent
118. Golden Age Absent
119. That's Why I'm... Absent
120. Rootin' For Ya! Absent
121. Reinforcements Arrive Absent
122. One-Two Finish Absent
123. Bye Bye, Hero Absent
124. Forever Absent
125. Each of Our Futures Absent
126. The Skycrawler Rising Appears


  • The kanji in her surname, Kaniyashiki, respectively mean “crab” ( kani?), “roof/house” or “shop/seller” ( ya?), and “spread/promulgate” ( shiki?). Her given name, Monika, is written in katakana (モニカ) and therefore has no known kanji reading.
  • The Heikegani, or Heike crab, is a species of crab native to Japan with a shell that bears a pattern resembling a human face.
  • Monika shares her birthday with Flect Turn.


  1. My Hero Academia: Vigilantes Manga: Vol.5, Omake
  2. 2.0 2.1 My Hero Academia: Vigilantes Manga: Chapter 31.
  3. 3.0 3.1 My Hero Academia: Vigilantes Manga: Chapter 32.
  4. My Hero Academia: Vigilantes Manga: Chapter 48.
  5. 5.0 5.1 My Hero Academia: Vigilantes Manga: Chapter 33.
  6. 6.0 6.1 My Hero Academia: Vigilantes Manga: Chapter 34.
  7. My Hero Academia: Vigilantes Manga: Chapter 35.

Site Navigation