Childhood friends, Jiang Hao Yue and Lu Miao, grew up like brother and sister always having each other's back. He helps her with schoolwork and she protects him from being bullied for his disability. As Lu Miao enters high school and makes new friends, she gradually realizes that her feelings for Jiang Hao Yue go beyond that of siblings. Shi Che's arrival brings upon a strong sense of unease for Jiang Hao Yue. Soon enough, the brother and sisterly love evolves into young love.