But Ching-yee's strict and conservative mother Liu Doi-lam, is highly against them being together due to Tai-hung's financial status, him being a bit older than her daughter and also him having a son from a previous relationship.

When he cons Tai-hung's equally immature younger sister Mok Siu-tou (Elena Kong) into lending him money to start his underwear business, he didn't expect her to cling onto him until he repays her.

His much younger newly wed wife Tong Tim-tim (May Chan) just immigrated to Hong Kong from mainland China, not long after marrying Chun-cheung.

At Ching-yee's younger sister's high school, extreme conservative literature teacher To Tak-kee (Sammy Sum), feels that all the students should be like him, remain a virgin until marriage.

When Tak-kee finds out that fellow teacher Emma Chung (Grace Wong) lives a promiscuous life outside of work he threatens to tell the school principal.