Kazuma Kiryu, the protagonist of the first Yakuza, is named Fourth Chairman of the Tojo Clan but unexpectedly retires from life in the clan the same day. However, his personally chosen successor is assassinated by a former allied gang called the Omi. These events set in motion an engrossing storyline that sees Kazuma travelling through Japan, on what could be the last opportunity to stave off an all-out war between the Tojo and Omi clans.