In order to appease their mothers, 30-year-old Cheung is getting married to 18-year-old Yoyo in London. Yoyo returns to Hong Kong to study and Cheung continues his work in London. The marriage is kept a complete secret. But things become complicated when Cheung returns to Hong Kong looking for work, and winds up teaching at Yoyo's School. Although Yoyo is enraged, she keeps their secret. As the one-year mark of their marriage approaches, will the love in their hearts overrule their urge for divorce?