S1, E2: This week on “DNA Mate,” we look into the relationships that Kim Jung Eun, Hong Ji Yun, and Yuk Jun Seo have with their siblings, followed by last week. Jung Eun cooks yeonpotang with Jung Min and invites a man over. Ji Yun has a drink with Ju Hyun for the first time in her life. Jun Seo looks after Jun Hee’s daughter alone.