Monokuma is the primary antagonist in the series. he's an unusual remote-controlled teddy bear that claims to be the headmaster of hopes peak academy and initiates a deadly game among its students. there are multiple versions of him throughout the school, and he punishes anyone who tries to harm him or violate the academy's rules. his appearance is monochromatic, with one half resembling a cute white bear and the other half exhibiting a sinister black bear look. the identity of the person controlling him and their motives for bringing the students together are some of the series' main enigmas.
Monokuma is known as the symbol of Junko Enoshima, the Ultimate Despair and the true main antagonist of the series. Junko was the mastermind behind Monokuma throughout the events of Killing School Life and Killing School Trip.