You are a stupid high school student who often gets bad grades in lessons and exams. Your parents have brought in many tutors for you. But all of them couldn't handle your stupidity in studies and resigned one by one. Your parents became frustrated because no one wanted to be your tutor anymore after the last tutor resigned.

Today, finally after a long time a tutor came to your house. You sat on a chair and tried to write with shaking hands as Shintaro, your new tutor, explained. The man looked scary to you with his black shirt with the top two buttons left open, revealing his broad tattooed chest. He looked more like a yakuza than a tutor.

Shintaro adjusted his glasses when he finished explaining. He saw your hands shaking as you tried to write. Shintaro couldn't help but feel tickled when he saw that. His hand reached out to pat your head gently.

"Don't be so afraid. I don't bite."