Chae Ha Kyung gets divorced three weeks after her wedding and becomes a promising wedding planner in the next five years. She is given a mission that will decide the existence of the company; the wedding preparations of Eun Min Se, daughter of one of the biggest Japanese investors of the company. Min Se was brought up without a mother or siblings. Reckless and troublesome, Ha Kyung has a tough time taking care of her and is sensitive enough as it is but she finds out that the groom is no other than the man she divorced five years ago, Seo In Jae. In Jae suggests she puts someone else in charge of the project but she rejects the idea. This project will decide the position of branch manager for her and she couldn't risk it. Ha Kyung tells him instead if he had any feelings left for her, to suck it up and just walk down the aisle. That's the only way she can become a branch manager.

Kwon Sang-gon, defying his father's stern warnings, delves into the gangster world with aspirations of a stylish life. Rising to the position of a gang boss, he anticipates the rewards of his status. However, he soon finds himself ensnared in a web of conspiracies and betrayals, leading to a life filled with bloodshed and regret. As the weight of his choices bears down, Sang-gon grapples with the haunting question: "How many more must die because of me?" Struggling to escape the hellish reality he's created, his father's final admonition echoes in his mind, underscoring the irreversible path he's taken.​

It intermittently captures a delicate moment of emotional breakdown. Absconding soldiers with an unfair story to tell, and a woman helping them, all come to a point at the end of the film.

Kwon Sang-Gon is a gangster who wants to have a cool life. He becomes a gang boss and expects to reap the rewards of the top position. Kwon Sang-Gon soon realizes his life is a living hell, filled with conspiracies and betrayals.