Kokichi is captured by shuichi saihara the ultimate detective aka ultimate despair. Pretty much it, just read the story I suck at discriptions

16 students trapped in a school, forced to kill. One student is the traitor. Though, I wonder who it is? Kokichi Ouma, your not so friendly brat of the year. He always lies, always becomes a pain to the ass, and always pushes you off the edge. Everyone hates him except one student in the school. The Mastermind. --- Wow I'm bored. Just read it. It's Oumasai of course. I haven't watched the whole gameplay of Danganronpa so I'm sorry if some parts are wrong.

After finding out who the true mastermind of the game was, Kokichi Oma was forced to participate in the new killing game along with 14 new students. The 16th student was none other than Shuichi Saihara, the Ultimate Despair Detective.