"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 Kugizaki in "Scream"

Soga Kugizaki ( (くぎ) (ざき) (そう) () Kugizaki Sōga?)[2] is an ally to the Naruhata Vigilantes and a 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 trenchcoat that resembles that of Knuckleduster's.

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 are other people 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.



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.

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 Bombing 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. Authentic, International, Spicy Curry Absent
68. I Won't Lose Absent
69. A Hero Appears Absent
70. My True Self Absent
71. Thanks For Your Guidance Absent
72. Searching For You Absent
73. The Queen Descends Appears
74. After The Storm Appears
75. Letter Appears
76. Weapon Appears
77. Strategy Appears
78. Dispatch Appears
79. Inferno Number 2 Appears
80. Who Is It? Flashback
81. Bee My Pop Flashback
82. High-Speed Hero II Mentioned
83. Raging Inferno Absent
84. Dreams Appears
85. Inquiries Appears


  • His name contains the kanji for "nail" (?), "peninsula/spit" (?), and "animal claws and fangs" (爪牙?).
  • Soga’s ability is very similar to that of the X-Men character Evan Daniels aka Spyke.


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

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