Jisoo was raised with the belief that 'women should be modest.' Her one-night stand with Hyunwoo, whom she first met at a club five years ago, was meant to be a brief fling... Then one day, she unexpectedly crosses paths with him at her workplace! What? He's the new CEO starting today?! Jisoo feels uneasy around Hyunwoo, who shares a part of her embarrassing past, but as Hyunwoo, who only knows how to be direct, continues to approach her, Jisoo's feelings slowly begin to change...