The 17-year-old boy Duan Bowen (played by Chen Feiyu) lost his mother at a young age and had a fierce conflict with his stepmother. The sensitive and rough boy fell in love with the maverick teacher "Little Ear" Li Er (played by Mimi), which became a secret in his heart. The energetic girl Yu Chizi (played by Ouyang Nana) also has a secret in her heart. She has a crush on her childhood sweetheart Duan Bowen. But one day she found out that her best friend, the unique school beauty Scarlett (played by Zou Yuanqing), secretly maintained a special relationship with Duan Bowen. She was angry and began her own revenge plan...