"Don't Be Too Wild" tells the story of Xu Yinong, a design student who was deprived of living expenses because he went against his father's wishes. He accidentally spilled ice cream on Jiang Zuo, the son of a wealthy family, while working. In order to compensate for the loss, she reluctantly agreed to become his "agreed girlfriend". The two gradually fell in love with each other, and Jiang Zuo gradually revealed his secret love for Xu Yinong since high school. However, Xu Yinong's extremely controlling father and Jiang Zuo's complicated wealthy family background have become many obstacles in their relationship. This is a youthful love song that begins with an agreement and struggles between temptation and sincerity. It is also a brave journey of two young people facing family pressure and self-growth.