Weird Relative of the Family

Overview:

Jin-ah sees Tae-yeong at her boyfriend Cheol-min's shop, and falls in love with his handsome face. To meet Tae-yeong, Jin-ah invites him and Cheol-min to her house. Cheol-min finds out that Jin-ah likes Tae-yeong, and he is very jealous. In the end, Tae-yeong leaves and heads to Jin-ah's house alone.