Byeon Hyeok-jun is a young man drowning in debt, desperately trying to find a way out of his miserable financial situation. When he discovers a mysterious staffing agency offering unbelievably high-paying part-time jobs, he sees it as his chance to turn his life around. Unfortunately, every job comes with terrifying consequences.

He's an ordinary guy thrown into extraordinary circumstances — sometimes clumsy, occasionally frustrating, stubbornly persistent, and far more determined than he initially appears. He isn't a fearless hero. He's just a man who wants to survive, pay his debts, and somehow make it through another day.