The plot tells the story of teenagers and girls who are teased by fate to choose their own way of life in the era of climate control out of control. In the summer of senior one, young fan Gao ran away from home and came to Tokyo alone. It's not easy for Fan Gao to find a job and write for a weird mystery magazine. He lives a lonely and poor life. Days of torrential rain seemed to set off his loss. In the bustling corner of the metropolis, Fangao meets a lovely girl named Yangcai. Yangcai and her brother are dependent on each other, strong and cheerful, but there is a big secret in her heart - whenever she says: it's sunny now! The rain gradually stopped, and the beautiful sunshine fell on the street. It turns out that she has an incredible energy, a force that can make the sky clear.