Harue shields Shizuka but is gunned down by ex-Shindo-gumi member Yokoyama. Her death pushes Munakata to form his own group, and Mukai entrusts him with his dream of “conquering Japan from Yokohama.” Meanwhile, rumors of Munakata’s new organization reach the Hachio-kai. In Kyoto, Sawamura and allies move to settle a scandal tied to their associate Horita, but are ambushed by Gudokai, leaving Murata injured again. Elsewhere, Yamaoka visits Yokohama, seeking Toyokai’s help to eliminate Onda.

Having barely survived, Soma returns to the fold. Munakata and Sawamura raid Sudo’s hideout, but a hail of gunfire wipes out their leads. Meanwhile, a scandal involving Minister Kanzaki—engineered by Nawa-kai—hits the tabloids, only to be silenced under pressure from both Hachio-kai and Toyokai.

During a meeting of the Toranishi-kai, led by Onda, news breaks that Shindo-gumi boss Yamaoka has been shot. Inside Shindo-gumi, the hunt for the culprit begins. Growing suspicious of Onda, Hayasaka pressures Onda’s ally, the Hanaoka-gumi, to leak information about Toranishi-kai.

Sawamura and his crew visit Kyoto’s Arashiyama family to clean up a scandal tied to Build-Up president Horita, who is deeply connected to Toyokai. Suddenly, Gudokai ambushes them, leaving Murata injured again. Meanwhile, Yamaoka arrives in Yokohama, asking Toyokai to take care of Onda.

At the succession ceremony of the 4th Hachio-kai boss, leaders from across Japan gather to celebrate new chairman Kurose. Rumors spread of Shindo-gumi’s plans to expand into eastern Japan, putting local syndicates on edge. Amid the unrest, Murata Kunio is attacked and left in a coma.

When Toyokai underboss Eda collapses, boss Mukai appoints Naoe Takehiko as acting underboss. At Mukai’s request, Sawamura joins him for business talks in Nagoya. Meanwhile, within Hachio-kai, tensions flare as newly freed boss Shirota’s faction clashes with acting leader Kurose Akito over the group’s new direction.

Through Shindo-gumi’s maneuvering, Amano Shuji is abducted by the Moji family—along with his daughter Mari. Their ally Shimaki, revealed to be secretly tied to Shindo-gumi, claims he was working as a double agent. He then plants a hidden mic before meeting Shindo-gumi’s Onoue Tatsuhiko.

With Munakata Seizo as boss, Sawamura Ryuichi and Soma Kunihito establish the Munakata-gumi under the banner of Resshikai. Soon after, Shindo-gumi’s Shimaki, carrying the missing ransom money, shows up at Munakata’s ramen shop. Meanwhile in Kyushu, Shindo-gumi schemes with the infamous Moji family for profit.

Munakata Seizo, who runs a ramen shop while secretly carrying out underworld work for Toyokai boss Mukai Shigemasa, gains a reputation for his efficiency—soon whispered about as the assassin group “Resshikai.” One day, Mukai’s wife Harue and granddaughter Shizuka are abducted.

The third 'Road to New Don' film.