Kokichi Oma is a student in the Ultimate Academy for Gifted Juveniles and a participant of the Killing School Semester. His title is the Ultimate Supreme Leader. Kokichi describes himself as an evil supreme leader, and often claims that this title is the reason behind many of his questionable actions as if he is expected to fulfill his role. He is an elusive and manipulative person who unabashedly tells lies and says whatever he's thinking.