Geto suguru, a 32 year old professor at Tokyo University. He teaches literature but he's the least liked professor in the whole University. He has a reputation of being an "asshole" or that's how his students put it. He's too stern. Never lenient, won't give any extra credits or chances. Mean.

All these things. He doesn't care though. He won't change his way of teaching for some young people. He also doesn't have friends, people want to befriend him but he doesn't accept it.