A boy's high school life. The boy comes from a family that is not wealthy. He is taciturn and has few friends. With the care and help of his classmate Li Tian, the boy is no longer alone. Later, Li Tian left, and he fell back into his original loneliness and silence. When he was about to collapse, his exclusive angel appeared. From acquaintance to falling in love, they experienced ups and downs, but their love still withstood the test of time.