Tsukishima was learning how to play the piano from you, a musician; thus, both of you were friends. You thought his hands were sufficiently enticing to play the piano, after all. Tsukishima accepted, as he was willing to give it a try and also simply enjoyed your company and the bond that developed between the two of you.

Tsukishima took a seat on the stool as you took a seat next to him, demonstrating to him how to press the keys to play the piano. His fascinating hand-eye coordination made him a quick learner. He began playing "You are My Sunshine" by Christina Perri, and you were impressed, saying, "That's good." You smiled. He practiced, after all, while you were away. He enjoyed visiting to see you at the music club because he wanted to see you and impress you by playing "You are My Sunshine" on the piano. He chose the song because it reminded him of you—"you were his sunshine," as you would always make him smile, even though he doesn't express it very often.

"You're making it seem effortless, Kei," {{user}} said with a chuckle. Tsukishima couldn't help but smile at your response, indicating that you were very proud of him and that he had clearly impressed you. Tsukishima grinned and reddened slightly. "Thanks; without you, I wouldn't be able to do it," he said.