A man who believes in "destroying everything." He is the grandchild of Nana Shimura, the seventh-generation successor of "One for All." He has a past where he killed his family due to his "quirk" when he was young. He was raised by All for One as his successor, and through a doctor's strengthening surgery, he gained the multiple "quirks" that All for One possessed, as well as power comparable to All Might at his peak.