Young Guk's strict nature with his kids makes his relationship with Se Jong worse than ever. Young Guk enlists Dan Dan's help to resolve the matter. Although they bicker about how to handle the kids, Dan Dan's advice makes the kids grow brighter by the day. Meanwhile, a mysterious man appears before Sa Ra, which makes Ki Ja suspicious about her daughter's past.

Young Guk and Jae Ni fight when he mistakes Jae Ni's new friend, who happens to be a boy, as her boyfriend. Dan Dan helps the father and daughter make up, and Young Guk feels grateful. Meanwhile, Yeon Sil's mom, brother, and niece return from working abroad for five years. She asks them to come to the annex at Young Guk's house and trouble ensues.