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Unihorn (イッカク, Ikkaku) is a member of the Monster Association in the manga. He is a Demon-level monster who briefly appears to fight Garou along with Showerhead and Super Mouse.


Unihorn is a humanoid creature with a large horn as a forehead. He has eyes all over his body, and malformed teeth.


As a monster, he naturally seemed to be confident in himself, proclaiming his horn was "unbreakable." Unlike other monsters in the association, he was willing to work alongside other monsters to fight other opponents.


Human Monster Saga

Monster Association Arc

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Garou counters Unihorn's spinning attack

Unihorn appears alongside his partners Super mouse and Showerhead to confront Garou. Unihorn says Garou is full of himself, and proceeds to attack him first, swinging his body around like a giant buzzsaw. However, Garou easily anticipates his move and sends him crashing to the wall.

Unihorn is defeated-0

Unihorn is defeated

However, it is revealed that Unihorn was actually transforming into his killer form, which is a very long horn, and Super mouse picks him up for their combo move, the Demon Trinity Bursting Speed Thrust. But unfortunately for them, Garou had already experienced a similar attack against Stinger, and deflects it. Alas, Garou forgot that Overgrown Rover was still standing behind them, and the attack caused him to deem all of the people in the room as threats. Overgrown Rover throws back Unihorn, who, despite boasting of an "unbreakable horn", is broken. He is then vaporized by Rover's energy blast alongside his partners.

Abilities and Powers

Being a Demon-level monster, Unihorn is a very powerful opponent, and was able to survive an attack from an evolving Garou. However, against Dragon-level monsters, he is utterly helpless, and was broken apart by Overgrown Rover.

Enhanced Strength: Being a demon-level mysterious being, Unihorn has impressive physical strength.

Enhanced Speed: Unihorn is rather fast, being fast enough to spin himself around at intense speeds, appearing like a giant buzzsaw.

Enhanced Durability: Unihorn proclaimed to have an "unbreakable horn", and was also strong enough to take a strike from Garou unharmed. However, he was easily defeated by OVergrown Rover, even with the enhanced speed of the special combo move.



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