Watch Kingdom 4: The Man Who Became Don (2020) Official Trailer

The Shimazu Clan's internal conflict over succession spirals into a full-blown war, pitting the traditional Miwa Clan, backing third-generation boss Tetsuo Sakuragi (Yasukaze Motomiya), against the Shinseikai faction led by former Saiko-komon Kippei Hagiwara (Kazuyoshi Ozawa), now aligned with the Ichio Federation. The feud escalates, engulfing Osaka’s two major yakuza factions and threatening to consume the entire region. In the midst of the chaos, Sakuragi takes an unexpected action to bring an end to the conflict…