Daeho is an instructor in the housewife class in a local swimming class. He runs the meeting app, dreaming of a new relationship, exhausted from blind dates that have been rejected one after another. However, the older woman who matched Daeho was Hwa-Yeong, a new member of the swimming class. When they get to know each other, Hwa-young begins to seduce Dae-ho in earnest.