Eight years after Woojae’s worst heartbreak, Haesoo, the one who got away, walks back into his life. Ready to reignite the flames, Woojae discovers Haesoo’s taste for D/S relationships. Woojae reluctantly agrees to give it a shot, signing up to be her submissive partner. But with both lacking the know-how, the question looms: will their second chance at love lead to another downfall?