Tomura Shigaraki

Shigaraki initially behaves like an impatient and emotionally volatile young man. He interprets obstacles through the language of games, becomes visibly agitated when events deviate from his expectations, and scratches at his neck when frustrated. Failure at the U.S.J. exposes how dependent he still is on All For One and Kurogiri.

Repeated defeats force him to mature. His encounters with Stain and Chisaki Kai teach him that simply wanting destruction is not enough to command followers. Shigaraki gradually learns to assess opponents, exploit their weaknesses, delegate responsibility, and recognize the personal desires of the League's members.

Beneath his nihilism is intense resentment toward a society he believes abandons people who fall outside its comfortable assumptions. His hatred originates in the abuse he suffered as Tenko Shimura, the accidental destruction of his family when Decay manifested, and All For One's subsequent manipulation of his trauma.

Decay destroys whatever Shigaraki touches with all five fingers of one hand. Initially the effect spreads only through what he directly contacts, making close-range combat his principal method of attack. It works on living bodies and inorganic material alike.

Shigaraki is also fast and physically capable enough to threaten trained heroes at close range. His combat instincts improve dramatically as the League becomes involved in increasingly dangerous conflicts.

During the conflict with the Meta Liberation Army, Decay undergoes a major awakening. Shigaraki becomes capable of propagating destruction through connected surfaces over enormous areas and no longer requires all five fingers to activate it.

Kyudai Garaki later subjects him to an extreme enhancement procedure intended to give him a body capable of receiving All For One. Shigaraki emerges with superhuman physical strength and durability comparable to the highest-level combatants even when Erasure suppresses his Quirks, alongside multiple stolen abilities inherited through All For One.

Shigaraki first attacks U.A. at the U.S.J., leading villains against Class 1-A in an attempt to kill All Might. The operation fails, but it establishes him as the League's central threat.

Stain's ideology unexpectedly attracts recruits to the League, including Himiko Toga, Dabi, Twice, Spinner, and Mr. Compress. Shigaraki initially resents Stain's influence but eventually learns to use the attention it creates.

His confrontation with the Shie Hassaikai marks another stage in his growth. After Chisaki's defeat, Shigaraki intercepts the prison convoy, destroys Chisaki's arms, and steals the Quirk-destroying bullets his organization created.

The Meta Liberation Army conflict reveals Shigaraki's childhood as Tenko Shimura. By defeating Re-Destro and absorbing his organization, Shigaraki becomes Grand Commander of the Paranormal Liberation Front.

After receiving All For One's power, Shigaraki becomes the central physical threat of the Paranormal Liberation War. All For One subsequently attempts to overwrite his personality and take permanent control of his body, turning Shigaraki's struggle against hero society into a simultaneous struggle against his own mentor.

In the final conflict, Izuku recognizes the traumatized Tenko still buried within Shigaraki and attempts to save rather than simply kill him. Shigaraki ultimately turns against All For One's control before his body is destroyed, entrusting Izuku with the message that he fought to destroy for the people who depended on him.

All For One raises Shigaraki after his childhood tragedy, presents himself as a protective mentor, and systematically encourages his hatred. His apparent paternal care is ultimately revealed as manipulation intended to shape Shigaraki into a vessel All For One can possess.

Izuku Midoriya becomes Shigaraki's principal heroic opponent. Their conflict increasingly centers on Izuku's determination to understand the suffering behind Shigaraki's violence without excusing his crimes.

Kurogiri acts as Shigaraki's caretaker and operational support during the League's early years.

Himiko Toga, Dabi, Twice, Spinner, and Mr. Compress become the core companions who remain around him as the League develops. Shigaraki increasingly respects their individual motives instead of treating them merely as pieces under his command.

Nana Shimura is Shigaraki's grandmother, making his transformation into All For One's successor a deliberate attack on the legacy of a One For All holder.

Kotaro Shimura is Shigaraki's abusive father, whose resentment toward heroes profoundly shapes Tenko's childhood.