A sugary-sweet campus romance between Ruan Nuo, a sweet and cuddly new student with a love for desserts, and Song Yanzhou, a cool, aloof top student at the medical school. Ruan Nuo arrives on campus with her grandmother's hand-drawn recipe book, hiding her crush on the “handsome big brother in the white shirt” among her dessert recipes. She has no idea that the boy who gave her caramel cake six years ago has kept her photo in his phone album ever since.
From an accidental spill of cream at the dessert shop to being forced into a team for the “Food and Health” event, he remembers that she's allergic to mangoes and times his visits to coincide with her baking. She draws his name in her recipe book and secretly slips strawberry hard candies into his pocket. He uses a medical model to make a heart-shaped mousse mold, and treasures even the honey bread she accidentally burns for him. He dashes out of a debate tournament to help her win the dessert competition, while she draws a heart in icing on his lab coat.
There are no melodramatic misunderstandings, just two people falling for each other, with all their affection tucked into the sweetness: his tender habit of buying every “failed” batch, her recipe book filled with his name, and a promise of forever hidden in a chocolate ring box. When her secret-crush recipes become a public menu of sweet treats, the icy senior's special affection becomes the whole school's best-known exception. In a campus filled with the scent of baking and disinfectant, they get “I love you” to just the right level of sweetness.