Watch Kingdom 3: The Man Who Became Don (2019) Official Trailer

As the Heisei era nears its end, the Shimazu Clan's second-generation boss, Yumizo Tokuma (Ryuji Katagiri), suffers a fatal stroke, triggering a power struggle. A succession battle erupts between Wakagashira Tetsuo Sakuragi (Yasukaze Motomiya) and Saiko-komon Kippei Hagiwara (Kazuyoshi Ozawa). Hagiwara's faction aligns with the Kanto-based Ichio Federation to block Sakuragi from becoming the third-generation boss. Targeted for assassination and detained by police, Sakuragi faces escalating conflict. The feud claims lives, including members of Hidetoshi Kaji's (Hitoshi Ozawa) Koga Family. Remembering Tokuma's wish to avoid internal bloodshed, Sakuragi withdraws from the race, vowing to step away. Yet, his decision may not bring an end to the turmoil...