After being possessed by the ghost of vengeful hitman Kudo, college student Fumika Matsuoka agrees to help him finish his quest for revenge from beyond the grave.

Shizuya (Ito Kentaro), the only son of the Kanto region’s largest gang, the Shinshu Clan, which he hates being associated with, works instead for a design company. He works diligently while developing a liking for his strong-willed colleague Akino (Kakei Miwako), but when his father is shot and killed, the battle for succession intensifies. Peaceful lives are transformed.