Yakuza 4 continues the story of Kiryu Kazuma and introduces three new playable characters: Masumi Arakawa, Shun Akiyama, and Taiga Saejima. The game delves into their intertwined lives and conflicts in the bustling city of Kamurocho. It features an expanded combat system, with each character having unique fighting styles and abilities. The narrative explores themes of redemption and revenge, with rich side quests and mini-games adding depth to the open-world experience.