Kei (Leo Koo) has just wrapped up a big contract for his company (though it's never clear what kind of work he does). He decides to take a well deserved vacation, to go and visit his girlfriend June (Anita Chan) in Japan. He hasn't seen her in a while.

Kei (Leo Koo) has just wrapped up a big contract for his company (though it's never clear what kind of work he does). He decides to take a well deserved vacation, to go and visit his girlfriend June (Anita Chan) in Japan. He hasn't seen her in a while.

Former sand group member Kasahara attacked the Akamatsu group's office and robbed cash. Kasahara, who was driven by the Akamatsu group and lost his escape, asks Hitoshi for help. Jin, who judged that he was an act that deviated from Jinyoshi, refused to rescue Kasahara. Kasahara, who was in a difficult situation, attempted suicide, and Jin was forced to shoot Kasahara and deliver the stolen money to the Akamatsu group. However, a few days later, Kim and Kasahara's corpse disappeared, and the suspicion was struck by Jin.

In order to earn legal Shinogi, Sunagawa was trying to start a unified legal business with a one-yen coin with the support of members of the Diet. However, the skirmish between Shimizu-gumi and Masago-kai, the main organization of the Ichienkai, intensified, and the plan began to be hindered. Jin, who has a good face in the two groups, enters arbitration, but the conflict continues to intensify as the leader of the Shimizu group is shot by the Masagokai and the Hitman of the Shimizu group. Yoshiro, who was investigating both the Masagokai and Shimizu-gumi, notices that there is a strategy of Mizuho-gumi, the director of the Ichienkai, in the shadow.

The Kanto 1-yen coin party has a fierce internal conflict! In the Kochi-gumi, the confrontation between the young head Sakuta and the son-in-law of the group leader, Kunitomo, had surfaced. Meanwhile, at that time, Okiyama, a man armed with a pistol and dynamite, rushed into Kamibayashi Trading. He takes the hostage and demands that he bring Jin. Okiyama's lover was killed by a yakuza a week ago, and the culprit is Jin ?!

Souta and Doumoto have finally moved together. However, the couple's happiness is short-lived since Souta's older sister, Kozue, unexpectedly goes to her brother for asylum after arguing with their parents and running away from home. Souta will end up developing jealousy towards her sister since he believes Doumoto is interested in her.