Kent, a handsome and skilled pâtissier, draws flocks of female customers to his cake shop "K." Manager Cola suggests a collaboration with Cain, a hugely popular musician.

Cain, who dislikes sweets, is shocked by how delicious Kent’s cakes are. They agree to collaborate, and Cain even starts pastry training under Kent—but for some reason, he struggles to focus.

Cain is asked to perform a new song at the wedding of his high school crush, Soda. Though supportive, Kent senses Cain’s lingering feelings and tells him, “Your past doesn’t matter to me”… but will that be enough?

Their new song is progressing, and their collaboration is announced publicly. But at the press event, Cain denies any romantic feelings for Kent—unable to be honest about his emotions.