Byakuya Togami s a student in Hope's Peak Academy's Class 78th, and a participant of the Killing School Life. His title is the Ultimate Affluent Progeny. Byakuya is the heir to the worldwide financial conglomerate that is the Togami family. The Togami family has a "peculiar inheritance system", in which the male head of the family does not take a wife, but instead couples with exceptional women from around the world, in order to bear as many children as possible, fifteen siblings at most.