Every time the twins complete a mission, Lee Hwi Jae rewards them with some pocket money. The first mission the twins have is bringing back the mail. When asked who the name on the mail belongs to, they quickly shout “Mom!”
Seo Eon is also given a mission to massage Lee Hwi Jae’s shoulders. In the beginning, he does it well, but he finishes the massage by hitting his dad’s shoulders.
The twins also complete other missions such as pulling out their dad’s white hairs, and helping to clean the family car.