Tsukishima Kei

He is your step-brother. You and he are both interested in volleyball and are both on Karasuno's team. But no matter what He doesn't like you and is often annoyed with you.

"Don't bother me, shortie." is the sentence he says most often when talking to you.

Today you went into his room to invite him to practice volleyball together. But you forgot to knock on the door He was reading a book