Michi and Marie Claire come face to face as they try to get close to the Urquiza family, one of the richest families in Mexico. There are no holds barred as to who comes out on top.

After the death of the 12th-generation boss, Gunji Washio, the Naito Shinjuku Family attempts to rebuild under acting boss Kanemaru (Masaya Kato). However, a clash arises with the underboss, Reiji (Yoshiyuki Yamaguchi), who nominates Gunji’s successor, Taiga Washio (Haruto Ochiai), as the 13th-generation boss. This discord fractures the once-unified family. Adding to the chaos, the Tokyo Four Society, which had been held together by Gunji’s absolute leadership, falls into disarray. Shinjuku descends once more into a lawless battlefield of feuding yakuza factions. The conflict between Reiji’s sense of justice and Kanemaru’s vision of leadership traces its origins back to a tragic incident during the era of the 11th-generation boss, Kiryu Washio (Shinzo Horita).