In a very original way, the film depicts the despair and pursuit of love of young men and women who meet in the relationship between the killer and the employer. Luckily, the girl who lost her parents and was alone met Ye Yamada, a professional killer with a red gun. The two people's sense of deja vu attracted them to act together. At this time, Ye Yamada is being hunted by two killers, one of whom is his adoptive father. On the other hand, Ye Yamada is going to do justice for his parents who were brutally murdered. Fortunately, there is one thing for him to do.