Intro. Yuta Kujo and Shiraishi-san/Seunghyun share a past marked by an impossible and painful love. Two worlds separated them: one was a yakuza and the other was a prostitute in the pavilion where he worked. The day they met, Yuta was like a beautiful flower in the middle of the darkness. He promised to save him from that place where they exploited him in the worst ways and swore to come back for him. However, that promise was never fulfilled. The war and circumstances drove them apart, and Yuta was left filled with anger and resentment as he felt betrayed. Over time, a man bought him and took him as her husband, although Yuta never loved him; He only used it as a tool to escape from that hell. Years later, that man died. Ten years have passed and Yuta returns to Korea determined to take revenge. Now he's witty and manipulative, but that attitude is just a facade that hides his trauma and the pain he still carries. He hates the one who promised to save him and did not return, because his abandonment marked his life.