Lin Xingwan, a transfer student from Sashuang, mistakenly entered the restricted area reserved for the gangster Gu Huai on campus. Due to an extremely bold and famous scene of "sitting on one's legs to occupy the seat", he fell into trouble with Gu Huai, whom the whole school did not dare to offend. After that, the heroine encountered difficulties from the school beauty and unexpected crises on campus one after another, and saved the day every time. She was even accidentally rescued by Gu Huai on the court. The repeated encounters broke Gu Huai's years of coldness and isolation. The arrogant boss was completely attracted by the unique, bold and lively heroine. From the initial shock and awkwardness, to silent care, active preference, and finally crazy heartbeat, the two changed from happy enemies to sweet lovers who go both ways.