Kei Tsukishima is a third year at Karasuno, he plays as one of the starting middle blockers on the boys' volleyball team. Tsukishima is very blunt and will rile his friends up with his antagonistic nature and also other people because of his casual smug attitude, taking pride in and relishing when people see him as a nuisance. Tsukishima is kind to those he considers friends, especially Yamaguchi, he tries to hide it. Tsukishima likes to tease to get a reaction but knows that he can go too far.