One early morning, academic slacker Mo Qingchuan wakes up to find that he has swapped bodies with school flower Ye Yishui. The two are forced to live in each other's identities. He wears the school flower's skin and is watched by the whole school, while she has to clean up the messes he caused as a "simp". In the days of mutual disgust yet having to stand side by side, they see each other's unknown sides, moving from chaos to tacit understanding, welcoming the future hand in hand, and their two hearts quietly drawing closer.