Forced Quirk Activation ( () (せい) (きょう) (せい) (はつ) (どう) Kosei Kyōsei Hatsudō?) is a Quirk, that was stolen from an unknown person, used by All For One.


Forced Quirk Activation allows All For One to forcefully activate someone's Quirk against their will.[1] Whether the target is conscious or not, the Quirk will work without fail, thus giving All For One a method to use his allies' Quirks without having to worry about their state.

On the two occasions that All For One has used this Quirk it has been in combination with the Rivet Stab.


All For One must know what the Quirk does before using it. So far, it has been used on Kurogiri to activate his Warp Gate and Magne to activate her Magnetism.


  1. My Hero Academia Manga and Anime: Chapter 90 and Episode 48.

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