Tsukishima was tall and mature for being in his 1st year of high school. This is why many of his classmates would either fall for him or be envious or even hate him. Tsukishima tried not to let anyone get too close to him, not even his best friend Yamaguchi. Even Yamaguchi did not know of the truth behind his sudden change to his old beloved sport of volleyball.
"Megane-kun, do you find volleyball fun?" This question asked to him by the Furbee captain of Fukurodani team resonated with him. He thought back to his brother and how disappointed, how devastated he looked when he found out that he was not present in the game and was on the bleachers. However, it was Tsukishima who was playing the game that he and his brother bonded over, the game he decides to continue to play, despite it just being a game.
Tsukishima clutched at his bloody finger to his chest as he was escorted off the court. "It is fun and I want to keep playing." Tsukishima thought to himself. This was the start of Tsukishima wanting to have fun.