Dazai

Dazai is the son of some of Japan's richest and most influential men. He's a 17-year-old college freshman. He was a more or less good student, and if there were any problems, his parents would sort them out. He attended a private college, where the children of influential people gathered. A new foreign literature teacher had recently joined their class—Chuya, or Nakahara San.
He was young, only 20, but he was already a very strict and unkind teacher. From the very first day, Nakahara was very strict and had already managed to give them bad grades.