younger brother of All For One, as well as the first user and progenitor of the One For All Quirk. He was presumed to be Quirkless, and could only watch as his brother committed atrocities. When his brother decided to forcefully implant a Quirk within him, it was discovered that he really did have a Quirk, one with no other power than that it could be transferred to others. The merging of the two Quirks resulted in the creation of "One For All"