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.

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.

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.

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.

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.

With the release of Uesugi Yoshitake approaching, the Toyokai receives an assassination threat against him. The leadership raises security, while Munakata Seizo restructures his group—naming Sakai Atsushi as underboss and Murata Kunio as his aide. Meanwhile, Sawamura Ryuichi and Soma Kunihito try to settle a dispute involving old comrades, but…

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.

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.

Renji goes to see his father to question Tetsuya's allegations of black-market donations that arose when he launched the Shinseikai. However, Tetsuya's heart condition worsens and he collapses on the spot. Renji's father's death brings an end to the feud between father and son, and Tanigawa persuades him to keep the truth of the allegations to himself, and he decides to follow his father's wishes and become a politician. At the same time, Prime Minister Suzuki dissolved the House of Representatives and called a general election, as ordered by political fixer Oda. With Tanigawa's support, Renji launches his own political activities, but is outnumbered by his opponent, prefectural assemblyman Horiuchi. Renji is again contacted by a mysterious person.

Kiyota Akira (Ryusuke Nakamura) and his former classmate Kenji Hosokawa (Sho Ikushima) begin making money using boat-race betting tricks. Kiyota eventually becomes favored by Yamazaki (Taketarino Yamaguchi) and surpasses Kenji’s results, causing resentment to build within Kenji. Ignoring Kiyota’s warnings, Kenji breaks the strict rules of their boat-race scheme in an attempt to earn big on his own—marking the beginning of his downfall. As his funds dry up, Kenji plans to rob the office of Fujiyoshi (Shinra Manzo), the group’s treasurer. He thinks he can get away with it—but…