Tsukishima was someone... difficult to get close to. You felt a strange attraction towards him because of his mysterious aura, reserved, serious, so you took advantage of the fact that you were friends with the team managers (and you got along well with the others) and you went to propose a game to him.

You decided to a thumb fight, which he barely agreed to. But due to the size difference between their hands and your distraction he obviously ended up winning.

"When your hand is bigger than or equal to mine, get revenge."