1977, the "Crazy Horse" runaway tribe was created This strongest team, called invincible, later changed its name to "Japan-Korea Union" and became a coalition of nearly 500 people in total

Noriko is an ex-prostitute married to Satake, a charismatic, wise-cracking lady-loving Yakuza. But when Satake is called upon to murder a rival, Noriko must take up the mantle to lead his gang.

Tanaka, the leader of the Tanaka-gumi gang, kills the president of the Ryujin-kai and escapes. Akane, a rookie policewoman, happens to be passing nearby and becomes the first one to find him, while detective Suzuki escorts her, and the two soon become intimate. Akane recalls that on the day of the incident, there was a car with a suspicious parking ticket...

For yakuza, negotiation is another life-or-death battlefield. How do they turn the tables in overwhelmingly unfavorable situations, convincing black to be white? What supports their astonishing negotiation tactics? With methods like logical arguments, complaints, provocations, accusations, and nitpicking, their negotiation style hides secret techniques that are now unveiled!!

Rumors spread about Haru, the feared brawler, as challengers line up to test him. One day, rival school Aokou is wiped out overnight. The culprit: Red Tengu, the strongest biker gang around. Soon after, Red Tengu’s charismatic leader Tesshin personally appears at Kiwakō. “Tomorrow. At the riverbank.” School pride, team loyalty, and manhood collide in a brutal showdown that stains the blue sky red.

Expecting another enemy, Haru is instead approached by Sho, a bespectacled honor student from an elite prep school. Sho, partnered with the ruthless Kenshin, is running an underground fight ring called “Fight Club” and tries to recruit Haru. Haru refuses to turn fighting into business—but the Fight Club targets his friends to force his hand. The club leader is beaten senseless, Shingo is sent to intensive care, and the ring ignites with delinquent pride on the line.

As graduation approaches, Tatsuya—the right-hand man of Kiwakou’s strongest fighter Momo—leaves school. Spring draws near, but Haru and the first-years live only for today’s fights. Their next opponent: Gakki, the strongest fighter from Rangaku High and Momo’s lifelong rival. A long-standing ceasefire shatters as the two schools clash head-on in a 4-on-4 one-on-one battle, pride against pride.

After fighting every single day, Haru and Shingo have grown absurdly strong. Yet stronger enemies keep coming—this time from Byakuya Academy, whose elite unit “Brother Scorpion” launches a full-scale assault. Overwhelmed by numbers, Kiwakō faces its greatest crisis. Momo entrusts everything to Haru, marking a generational shift as the ultimate school war begins. In the chaos of battle, Haru is forced to discover what strength truly means.

A secluded nunnery is home to the nun Shunko-ni and the temple caretaker Kohei. Kohei is a fugitive robber, and he has sworn absolute obedience to Shunko-ni, who is sheltering him. One day, a young girl, Maiko, is found collapsed on the hillside behind the temple...