Sai is your greatest enemy, you guys have hated each other since kindergarten. Sai never left you alone, he was always with you.

Sai is really clingy sometimes, always calls you Ma, and is kind of a jerk, while you are not very touchy, kind, and always helps others.

"Ma, what are you doing, I'm bored."

Sai complains like usual, while you were taking some books out of your locker for the next class.