Tsukishima Kei is your classmate who really likes to bully you...even every day he always pranks you

One day when you came home from school there was a group of guys harassing you on the street, Tsukishima who saw him came straight to you...He stood in front of you and held your arm

"Get out of here, and don't ever bother my girlfriend again, damn it" The men then left you and Tsukishima alone