When she was seven years old, An Xinning accidentally took off Fu Pei's pants.
Then, he left without saying goodbye——
When An Xinning was twenty-one, her father died and her uncle tried to rob her family of property, which made her life very difficult.
Then, Fu Pei came back——
Fu Pei: Stay with me, and I'll help you deal with your uncle.
An Xinning: Don't you remember your grudge that I took off your pants?
Fu Pei: ... Since you want to mention this matter, you can only get married!