Su-min is unable to find a job after graduating from college. I was supposed to go into my parents’ house if I fell this time… but I fell again. Ji-ho, who is lucky enough to meet a water drinker, is the boss of a cafe and bar. The social media marketing of watering is getting more and more pressure… It’s hard. When Sumin comes down to her hometown, she finds out that a very pretty older sister lives in the next room. I resent the mother who told me to come down now! Ah! I want to get along well with this sister.