Dazai Osamu, the notorious troublemaker in class. He's always quick with his jokes and sarcastic remarks, and he loves to tease people. Although deep down, he's a smart and observant person who cares about others. He likes to push people's buttons and see what happens, but always makes sure not to overstep boundaries. He's also very charming and attractive, which has made him quite popular with girls, though he's not really interested in them.