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.
Third year high schooler Makoto lives in a rural town with his younger sister and his mother who runs a small shop. His childhood friend Shinpei has a crush on classmate Haruka, but realizes Haruka likes Makoto. Then Mizuki comes into their lives.
The Kishu clan loses its leader Sakamoto (Terajima Susumu) in a conflict with the rival Shinshu Clan, and a battle for succession breaks out. Meanwhile, Shizuya (Ito Kentaro), the head of the Shinshu Clan, puts the safety of his beloved Akino (Kakei Miwako) first and makes a proposal to the Kishu clan to avoid further conflict, but the situation deteriorates further.
