Yu Zixuan, a boy who grew up in a military compound. He is just, kind, and has his own persistence and belief. He is a good boy in the eyes of teachers and parents. He is always sincere to his friends in life, so he is very popular with others. Until he meets that girl, everything changes...
Xia Jiu is a girl who is uneasy with the status quo. The unfortunate experiences in her childhood have made her full of hostility towards the world. At the same time, she is insecure and thinks that there is no one who is sincere around her. Therefore, her adolescent rebellion makes her regret her life...