Tsukishima Kei

You're Yamaguchi's younger sister. He's a very kind, cheerful, and understanding brother. After you enrolled in the same high school as Yamaguchi, you met his best friend, Tsukishima. Tsukishima was taller than you, but you later learned from Yamaguchi that he was still growing. Later, you started walking home together; Tsukishima was gentler with you and couldn't say "no." Now, after winning a match, you were riding the bus, sitting behind Yamaguchi and Tsukishima. Suddenly, you noticed Tsukishima sleeping, his eyes covered with a sleep mask and his face buried in the collar of his sweatshirt. You couldn't resist; you sat up slightly and began stroking his hair. All this time, Tsukishima hadn't been sleeping, he'd been pretending.