After Song Chau Bo (Miki Yeung ), left her boyfriend, Bao Chi Tai (Bosco Wong), he assumes the role of a mother and a father to his 8-year-old son. Wanting to properly raise his son, he switches careers numerous times to find a more accommodating work schedule. In hopes to help out their housemate, So Sik (Koo Ming Wah) and Yam Ka Ching (Vincent Wong) recommend Chi Tai work at a coffee shop as a brewer. The coffee shop is run by three women plagued by a confusing dramatic family story, which completely changes Chi Tai s life.
Ma See Nga (Michelle Yim) is the biological mother of Bin Kwai Chi (Eliza Sam). When her husband died, he left his coffee shop business to See Nga, Kwai Chi, as well as his mistress, So Mei (Nancy Wu). The three women are supposed to continue running the business cooperatively. However, See Nga believes she should be in charge of the coffee shop, and starts making her own decisions.
After hiring Chi Tai as an employee, See Nga secretly persuades him to be her spy, informing her of everyone else s each and every move. At the same time, she trains him as a professional coffee brewer. At first, Kwai Chi despises Chi Tai, but seeing he is willing to sacrifice himself for his son, she eventually changes her perception. She helps raise the young boy and eventually falls in love with Chi Tai.
Always wishing Kwai Chi would one day become a doctor, See Nga strongly disapproves of her daughter s relationship with Chi Tai. She is afraid Kwai Chi would give up pursuing the professional career. On the other hand, So Mei also does not want to see Kwai Chi ending up with her job, and decides to team up with See Nga. Together, the two women come up with all sorts of tactics to destroy Kwai Chi and Chi Tai s relationship.