After finished the open examination for Form 5 students and applied for an adult identity card, Yoyo, eighteen, departed for London immediately to meet a guy introduced by her earnest parents living in Britain. The guy, named Cheung, is in his thirty. Yoyo's and Cheung's grandfathers were wartime buddies. They swore to have their unborn babies got married when they grew up. However, the babies turned out to be both women. The two women are now mothers. They come across each other again and want to make their fathers wish come true, so they arrange the acquaintance of Yoyo and Cheung in London. Yoyo and Cheung promised to get marry in order to please their mothers. But on the wedding day, they also sign a divorce agreement which is effective one year after their marriage.
It's fantastic for the interaction between Ekin Cheng and Charlene Choi (from girl band Twins) and the generation conflict that ensues. Ekin plays a 30-year-old old boy who's not fortunate in love and Charlene is a young overexcited and childish girl. She indeed is 18-year-old going on 12.
The story is just a pretext to an amusing confrontation between the leads and at least it provides enough laugh for the 90 minute running time.