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My Hero Academia Wiki
"Grinning at me like that. Always has been that way. It's always been people like that... grinning at me... makin' me into a monster!!"
Soga Kugisaki in "Scream"

Soga Kugisaki ( (くぎ) (さき) (そう) () Kugisaki Sōga?)[2] is a vigilante, ally to the Naruhata Vigilantes, and former Instant Villain.


Soga is a tall, skinny young man with wild spiky turquoise hair, a short goatee, and notably inward-slanting yellow eyes with very small eyebrows. His front teeth are shown to be sharpened to the point, while his back teeth seem to just be regular molars.

He wore a tank top with a sleeveless vest over the top, jeans, leather shoes, and a plaid shirt tied around his waist. He later wears a sleeveless vest, jeans, leather shoes, and a hat and trench coat that resembles that of Knuckleduster's, albeit brown instead of green.

When he injects Trigger, his physique increases, his hair becomes pointier and he grows spikes on his back and arms. Later, after he is forcefully administered a Trigger overdose by Kuin Hachisuka, he transforms into a monstrous, human-sized porcupine.



Soga's paranoia.

Soga has a cruel and violent personality, and likes to humiliate and attack people. This stems from the fact that he has been discriminated against due to his actions and his Quirk. He seems to think that everyone around him sees him as some sort of monster, and has developed a love of making other people suffer in place of him due to these circumstances.

He shows some signs of mental instability, as shown when he sees everyone around him with a mocking, condescending smile, and laughing at him, no matter who they are and what they are actually doing, suggesting that he is unable to separate reality from his perception of the world. It is suggested that this perception of the world is what makes him so violent.

In spite of these flaws, he shows solidarity with his friends, who he takes a leadership role for. He feels kinship with others who have been looked down upon due to their Quirks. He shows a strong sense of loyalty and care towards them, such as when he went to face Kuin alone and warned her to leave his friends out of their conflict. He also is very defiant when he knows he is being played, totally trashing a selection of Trigger drugs because he refused to aid in Kuin's plan in any way.

Ever since he was saved by the Naruhata Vigilantes from the murderous Stendhal, Soga changed for the better, and became a valuable ally to the Naruhata Vigilantes. As a result, Soga became somewhat of a vigilante himself, convincing and helping Koichi Haimawari to save Pop☆Step, even though it breaks many laws. He became a devoted student to Knuckleduster and preached some of his teacher's beliefs. Though Soga isn't a blind follower and keeps to his own beliefs. When Knuckleduster attempted to kill Number 6 and himself, Soga stopped it, saying they've worked too hard to keep everyone alive.

Soga has developed a firm sense of identity and ideology as a vigilante, lecturing those he thinks needs it. He believes vigilantes are necessary to those who slip through the cracks of the imperfect institutions. He has a complicated relationship with the police, as he knows they're fighting for the same cause and will occasionally help them. Though if he disagrees the police's methods, he'll refuse to cooperate. He dislikes the police prioritising budgeting over doing genuine good, critiquing Naomasa Tsukauchi for providing limited manpower and time to protect Pop☆Step. Soga doesn't care for the legal definition of a villain, refusing to acknowledge someone as such if he believes they are undeserving. Soga prefers policemen who are less rigid such as Eizo Tanuma rather then a by-the-books, Tsukauchi.



Spike (スパイク Supaiku?): Soga's Quirk allows him to sprout spikes from his body, initially only being able to do so from his hands and feet.

Spike in action.

When under the effect of Trigger, he grows spikes all over his back, head, and arms and throws himself spinning at his enemies. Later, when his life is endangered due to Stendhal, Kuin forcefully injects him a Trigger overdose, which causes him to undergo a full-body transformation: growing taller and altering his face to become porcupine-like while additionally growing spikes in the same places that he previously had under the effects of Trigger.

Battles & Events

Battles & Events

Chapter Appearances

Vigilantes Beginnings Arc
1. "I'm Here" Debut
2. Takeoff Appears
3. Nice Guy Reborn Absent
4. Honesty Absent
5. Bee Pictured
6. No Need to Hold Back Absent
6+ Alpha. Hero Conference Absent
6+ Beta. Hero Visit Absent
7. Top Runner Absent
7.5. Appearance Matters Absent
8. Him Flashback
Stendhal Arc
9. Judgment Appears
9.5. Mask Pictured
10. Scream Appears
11. Crossing Lines Appears
Vs. Queen Bee Arc
12. Senpai Absent
13. Makoto/Truth Absent
14. MAJOR Absent
15. Playboy Absent
16. Mom Descends Absent
17. Tag Team! Absent
18. Force of Will Acceleration! Absent
19. Family Appears
20. Event Announcement! Absent
21. Ensemble, Assemble! Absent
22. The Day Of Absent
23. Daughter Absent
24. A Father-Daughter Talk Absent
25. Goodbye to Dad Absent
26. Tamao Absent
27. Business as Usual Absent
28. What a Man Takes with Him Appears
Sky Egg Arc
36. Must-Have Merchandise Absent
37. Public and Private Absent
38. High-Speed Absent
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 Appears
46. Christmas Eve Hero Absent
47. Farewell Party! Absent
48. Investigation Start! Steamy Romance Spotted?! Absent
49. Zero Hour Absent
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!! Absent
56. I'm No Hero Absent
57. Explosive Man Absent
58. International Flight Home Absent
Final Performance Arc
66. Graduation and Career Path Absent
67. Professional / International / Spicy Curry Absent
68. I'd Better Not Lose Absent
69. Hero on the Scene Absent
70. True Self Absent
71. Thanks for the Guidance Absent
72. Searching for You Absent
73. The Queen Descends Appears
74. After the Storm Appears
75. Letter Appears
76. Deadly Weapon Appears
77. Strategy Appears
78. Dispatch Appears
79. Inferno Number Two Appears
80. Who's That, Now? Flashback
81. Bee My Pop Flashback
82. High-Speed Hero II Mentioned
83. Earthbound Perp Mentioned
84. Dreams of a Hero Appears
85. Questioning Appears
Underground Masquerade Arc
86. Underground Fighting Tournament Appears
87. Rap Rap Rap Absent
88. Hidden Face, Bare Ears Absent
89. Super-Smashing Tiger Bunny! Absent
90. Team-Up in the Underground Absent
91. Dash Ahead to Plan B Absent
92. Might Signal Absent
93. Three-Second-Back-and-Forth Absent
94. Underground Roots Absent
94.5. Tanuma Report Pictured
Naruhata Lockdown Arc
95. Moon Appears
96. Negotiations Appears
97. Pursuers Flashback
98. Intentional Persuasion Technique Appears
99. Invasion of the Faceless Appears
100. Super Explosion! Absent
101. Fly at Night Appears
102. Intruder Appears
103. Aim for the Head Appears
104. This Face Appears
105. Escape Start Appears
106. Chase of Crawlers Appears
107. A Hundred Hits Absent
108. Things That Live in the Abyss Absent
109. Encirclement Absent
110. Careless Appears
111. Return of the Fist Appears
112. The Ends to Miscalculation Appears
113. The Worst Villain Absent
114. Dogfight Appears
115. Conclusion to Power Absent
116. The Final Lesson Appears
117. The Bad One Absent
118. All the Fun Absent
119. I'm Still Here Flashback
120. Rootin' For Ya! Absent
121. Reinforcements Absent
122. Two Great Rivals Absent
123. Conclusion Appears
124. Something to Say Absent
125. Toward the Future Appears
126. The Skycrawler Rising Appears


  • His surname contains the kanji for “nail” ( kugi?) and “peninsula/spit” ( saki?) while his given name means “claw/talon” ( ?) and “tusk/fang” ( ga?).
    • Up until Chapter 85, Soga's family name was pronounced "Kugizaki."
  • Soga’s ability is very similar to that of the X-Men character Evan Daniels, aka Spyke.
  • Soga shares his birthday with Shota Aizawa.


  1. My Hero Academia: Vigilantes Manga: Vol.2 (p. 176).
  2. My Hero Academia: Vigilantes Manga: Chapter 5 (p. 3).

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