Kiryu's sub-stories often see him acting as a protector of the innocent, a problem solver, or simply getting caught up in the strange happenings of Kamurocho. Many of these quests involve classic street brawls, helping distressed individuals, or participating in various mini-games. 'The Homeless Problem' is a poignant sub-story where Kiryu helps a group of homeless individuals find shelter and dignity.
A crucial sub-story for Kiryu is 'The Dragon's Return', which unlocks his training with Master Komaki (if not already unlocked by Akiyama), granting him access to his signature Komaki techniques, including the Komaki Parry and Komaki Tiger Drop. Other quests might involve helping a struggling business, dealing with aggressive yakuza, or even participating in a bizarre 'UFO catcher' challenge. Kiryu's sub-stories are a great way to earn experience and money, and further cement his legend as the Dragon of Dojima.