The profit-oriented Johnson Lee brings his son home because his ex-wife is remarrying. Johnson lacks experience in raising a child, but wants to set a good example for his son. He inevitably feels at a loss. Fortunately, he meets Mandy Wong, who runs an education centre. With the help of Mandy, Johnson slowly learns how to be a responsible father. At the same time, he is in danger of becoming unemployed...
On the other hand, successful architect Jason Chan is dedicated to his job, leaving family matters to his father (Pat Poon) and wife (Candice Chiu). But when his daughter loses in a music competition and his son prepares to enter primary school, it sets off a battle between the in-laws. Jason intervenes and decides to switch places with Candice. He learns how to be a stay-at-home father and understand the needs of his children...
Coincidentally, the unemployed Johnson takes over Mandy's education centre, hoping to find success in the education industry. He meets the new stay-at-home father Jason. The two of them support each other as they hit bumps on the road to learning how to be a father, interwoven with tears and joy...