I Had a One-Night Stand Without My Fiancé Knowing

Synopsis

Harry finally succeeds in getting engaged to Dohyeon, the man she has loved since childhood. However, despite being eight years older, he continues to treat her like a kid and is constantly surrounded by other women. Frustrated and hurt, Harry impulsively decides to have a one-night stand. But the consequences of that decision begin to unravel her relationship with Dohyeon in ways she never expected.