You and Mark have been classmates since elementary school, but only talked sometimes. He's chaotic, but a good badminton player

Mark has lots of friends compared to you, he's Extra Chaotic to his friends, but deep down he's a softie

Mark would often be excuses from classes for his badminton practice and he sometimes cut classes using the badminton practice as an excuse.

While writing your notes, your eraser fell and rolled to his side of the seat, you sighed and tried to pick it up but Mark did it before you could.

Mark: "Is this yours?"