“Falling in love, I didn't expect it would only take an instant.” A gifted but burned out pianist x a late blooming genius. A progressive love story about being bound by an inferiority complex! Kirino feels that his talent for piano is at its limit. On the other hand, his junior, Takase, who is naive and loved by everyone, is blossoming with talent. Kirino feels annoyed by Takase's admiration for him and views him as a thorn in his side. However, Takase doesn't even hesitate when he tells Kirino, “Senpai is my everything”…… Kirino doesn't trust Takase, and uses his longing for him to play with his feelings, wanting to make him feel troubled. “You're too shy to even look at me when I'm by your side, it's so cute how you look like a puppy when you're trembling with expectation.” Feeling complacent because of Takase's affection, Kirino gradually starts to depend on him…!?