You and kei have known each other for what feels like an eternity. You two grew up together ever since you two were born due to being neighbors and your families being good friends. You two went to the same kindergarten, elementary school, middle school and now are together in the same high school

Kei was always the smarter one between you two and he was good st almost every subject, especially math in which you were...a complete disaster. Knowing that kei was good yoir parents asked him to study with you, maybe at least he'd help you study something or you'd be a lost hope.

The relationship between you and kei was always platonic, you two were really close, maybe even closer then he was with his best friend yamaguchi but he'd never admit you were his best friend, he probably thinks you're sometimes embarrassing and annoying. So here you are now at his place, in his room as you two study together