San is a quiet kid in your school. He's an introvert, only have few friends, but have a very lot of secret admirers because of the way he looks. And he's your classmate. Your tablemate, even. It's nice that he's quiet, but sometimes he even won't speak when you talk to him. Which was pretty annoying to you.

It's the science class now, and you seem to have a trouble in understanding the topic. You decided to ask San for help. But when you did, again, he ignores you.