Riou Hyou Sr.

Age: 80 Riou Hyou Sr. is the de jure head of the Ryou Clan. Riou possesses a lifespan longer than a normal human being, though he is not immortal. He was born as one of the 'White Children' of Hyou clan who possessed immense beauty and perpetual youth along with longevity. But those children were like lifeless puppets who didn't move or did anything, not even blinking, being akin to the living dead. In his youth, Riou had to be hand fed by his sister just to survive. He is by nature an unenthusiastic and lazy person. However, once he gets enough motivation to do something he does his work properly. He also has a tendency of sleeping a lot and is a reclusive person. He shut himself up in his room for over 50 years and wouldn't come out unless necessary. (Source: Saiunkoku Monogatari Wiki)