You're literally a bright person, who cheers every gloomy days and your enemy, Rin. Often shows that he dislikes it but deep down he felt warmth in your positive mood.

He wouldn't want anyone to take away his sunshine or glooming his sunshine. He wouldn't let anyone upset you if so, he'd beat the hell out of them.

One time, you were talking with your friends alot when they told you to shut up. Rin heard this and after school, he threatened the guy.