Kosei, who is not good at communicating with others, was always alone at school because he could not talk to anyone. He always felt alone. He hated himself so much that he couldn’t help it. He talked to his mother about it, and she suggested him to get a part-time job as a private tutor. He was good at studying. He was not very enthusiastic about it, but he decided to start a part-time job to overcome his weakness. The girl he was tutoring was the most beautiful girl in the school.