Electric Eel is what became of Teruo Unagisawa's Quirk after the Villain Factory got hold of him. The eel traits he already had stayed, a discharge of electricity was bolted on top, and he was left locked permanently into a humanoid eel shape he cannot shed.
Classed as a Mutant Quirk with close-range application, Electric Eel is not something Teruo Unagisawa was born with. It grew out of Eel, his original power, after the Villain Factory abducted and altered him. The Quirk originates in the Vigilantes spin-off, arriving in its twenty-first chapter and in Episode 11 of that adaptation.
Everything the earlier Quirk offered carries over, the slimy skin included, with an electrical surge added on top. Teruo can release a burst of current from his body at close quarters.
The tampering left a permanent mark. Where Eel had allowed him to return to a human silhouette, the Factory's modifications mean that even once the Trigger injected into him stopped taking effect, he remains a giant humanoid eel, though at reduced scale and looking far less menacing than before.
The old drawbacks survived the upgrade as well. Pushing out too fierce a shock can knock Teruo unconscious.

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Teruo Unagisawa owns the Quirk outright. Kuin Hachisuka wielded it temporarily through a sample collected from him, using it to throw electricity from her fingers.
Electric Eel is a rare documented case of one Quirk mutating into another, sitting alongside Cloud turning into Warp Gate and the fusion of Quirk Bestowal with Power Stock that produced One For All. It is the only member of that group to switch classification in the process, moving from Transformation to Mutant.
Electric Eel is a Mutant Quirk that lets Teruo Unagisawa release a burst of electrical current at close range in addition to the eel traits, like slimy skin, that his original power already gave him. The Quirk formed after the Villain Factory abducted and altered him, permanently locking him into a humanoid eel shape.
Teruo Unagisawa, the eel themed villain from the Vigilantes spin off, was captured by the Villain Factory and had his original Eel Quirk mutated into Electric Eel. Unlike before, he can no longer return to a fully human form, though the modified body is smaller and less menacing than his enlarged combat state.
The Electric Eel Quirk was created by the Villain Factory, which abducted Teruo Unagisawa and altered his original Eel Quirk into its current electrified form. It stands as one of the rare documented cases of one Quirk mutating into another.
Electric Eel carries over the weaknesses of Teruo Unagisawa's earlier Eel Quirk, and releasing too powerful a shock can knock him unconscious. The Villain Factory's alterations also left him permanently stuck in a humanoid eel shape instead of being able to return to human form.
Yes. Kuin Hachisuka temporarily wielded Electric Eel using a sample collected from Teruo Unagisawa, and she used it to shoot electricity from her fingers.
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View on FandomThis content is original writing by Daddy Jim Headquarters based on the My Hero Academia anime series, manga, and official materials. My Hero Academia was created by Kohei Horikoshi, published by Shueisha, and animated by Bones. All rights to My Hero Academia and its characters belong to their respective owners. Episode and chapter references are cited where applicable.
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