Firefly

Kim Min-jae has lost everything after falling victim to a housing deposit scam and being betrayed by the lover he trusted. After moving into an old apartment building, he discovers a hidden door and key inside the wall that lead to the mysterious “Ghost Market.” In this marketplace run by ghosts, everything has a price—even lifespan, emotions, memories, and body parts. Through a series of deadly games and dangerous deals, Min-jae fights to survive while amassing wealth and power. And now, he is preparing the ultimate revenge against those who brought him to ruin. Original Webtoon: Naver Webtoon, Naver Series