My wife is under 18 years old

Yoyo (Charlene Choi), who has just grown up, has many suitors, so he is always full of confidence and feels that he is extraordinary. At the request of her parents, she went to England to marry Zhang Shisan (played by Ekin Cheng) who was married to her fingertips. The two were deeply tired of such ridiculous things, but could not go against the wishes of their elders, so they pretended to be married and automatically divorced a year later. Zhang Shisan brought his grandmother’s family heirloom to Hong Kong to Yoyo. In order to keep Shisan and collect rent, Yoyo told Shisan to teach at the girls’ school where he attended, which would help him collect materials for his master’s thesis. Thirteen helped Yoyo get to know a boy, but Yoyo fell out of love. Thirteen helped her heal her emotional injuries, and eventually the two had a relationship. After getting along for a long time, the two fell in love with each other, but Yoyo's physical education teacher (played by Liao Biyi) also fell in love with Shisan. How should Shisan choose?