First appearance: Battle 95

Type: Dou

Type: Katsujin Ken

Martial Arts: Chinese Kenpo (Seven Stars Praying Mantis)

Ryuu Genson is a practitioner of the Seven Stars Praying Mantis Fist and the more skilled of Ma Ryou (Uncle Hakubi)'s disciples. He wears sunglasses and more modern clothes compared to his partner and is more irritable and arrogant.

Genson first appears with his fellow disciple and partner Shokatsu Kouan to take Ma Renka back to Hakubi. With Koan, he ends up fighting Kenichi, who easily defeats his teammate. As Genson fights Kenichi, he drives the latter into the pool they were fighting near. Genson then fights with Kenichi in the water and shows surprise at Kenichi's leg strength, as the latter had been training in the water earlier.

Genson and his opponent pass out under water and are rescued by the elder, who interrupts the fight by splitting the water in half, comically annoyed with the way the battle was being dragged out. In the aftermath, Genson and Koan apologize for the misunderstanding caused by Renka and leave with her to go back to Hakubi's place.

Genson reappears with his partner when Renka transfers to Kenichi's school, and accompanies her to take down Black Tiger White Dragon thugs sent to kill her. While the three are evenly matched with the enemy master, Genson receives assistance from Takeda and the four are able to defeat the master without much difficulty.

Genson practices the Seven Stars Praying Mantis Fist, and is first seen using the Northern Praying Mantis stance. He was expected at the D of D by Gaku Shin Ten, whose expectations were likely based on either the latter's abilities or his renown in the Phoenix Alliance.