Cheng Yiduo is a well-behaved, sensible and sentimental girl. After meeting her first love boyfriend Quan Yu, her nightmare begins: she is kidnapped by gangsters, her good friend Lin Xiya disappears unexpectedly, her father is even tempted to borrow loan sharks, and even the house is mortgaged... What's more terrible is that her world is full of doubts, and everyone around her has ulterior secrets, as if she is the only one who is transparent. So, can all the truth emerge? Dong Xiangwei, her college alumnus and fellow student, has been deliberately approaching her and has a seemingly ambiguous relationship with her two roommates. What is his conspiracy? Is the Lan Geer who appears later the same as Xi Ya? Why are you involved in the grudges of the previous generation with Quan Yu? Also, the boy who secretly stuffed candies into Yiduo's drawer turned out to be Quanyu's good brother, Qin Moyang, the boy Xiya liked! So, after many twists and turns, can they finally get married?