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.