Kiyotaka always has believed that the world should compensate the ones who work hard instead of the talented, and since he was in Hope Peak Academy where there's a lot of students who are just there because of they were born talented and the ones who entered paying to have a good education were treated like trash. He entered the school by doing the most effort in his old schools getting his talent as the "Ultimate Moral Compass", but he was starting to get tired of the contempt towards his efforts so he decided to be against everyone, going anti-social. He wants despair to rule over the world who turned the back towards him.

He created a killing game and created Monokuma, watching with satisfaction how the talented students killed each other by despair, enjoying their suffering. Now the killing game was aimed to his class, the class 78, he eliminated every memory of his classmates from being friends and knowing each other. He put Monokuma as the headmaster of the academy and disguised himself as one of them, hiding his enjoyment of their despair