, a.k.a. , is a user of the style who was a star pupil under Xia Fu and a senior master of Rio, Gou, and Miki. Dan was able to access Geki with little effort, manifested as a . Despite being the senior, Rio saw Dan as a rival and tried to surpass him. When Rio defected, Dan tried to defeat Rio but was killed due to a previous injury from a sneak attack by Long. Dan told a frustrated Rio that their battle could be fulfilled through his son, Jyan. Though Dan's Geki Soul was used in the creation of Suugu, Dan is unable to manifest until Jyan awakens his memory. After receiving a fatal wound from Long meant for his son, Dan/Suugu has Jyan land the deathblow, freeing Dan from his prison. Before leaving to the next life, he tells his son to walk his own path. Dan's alias is a reference to the Chinese mythological beast .