Gu Jianing, who had just turned 30, met the best man at her best friend's wedding. She thought he was 23 or 24 years old, and he thought she was 26 or 27 years old. Then the two of them had sex that same day. Gu Jianing originally thought of this as a one-night stand, but he didn't expect that he would become his student and pursue Gu Jianing madly. He said that he was 23 years old. Although Gu Jianing thought it was a bit young, he still reluctantly accepted it. After all, the two of them were very harmonious. Your 20s are your strongest age. He is Gu Jianing's first man. He is handsome and has a good figure. The maximum age difference Gu Jianing can accept is that he is seven years younger than himself. But then Gu Jianing saw his ID card and found that he was only 20 years old, which seemed too young. She fell into deep contradiction...