Kyou

Kyou is a Jiang Shi , a subspecies of zombie found in Asian countries. Unlike standard zombies, Jiang Shi are severely affected by the symptoms of rigor mortis, making their joints, especially their elbows and knees, particularly stiff. Because of this, they must practice tai chi every morning to stretch. However, their joints always stiffen to some degree while they sleep, forcing them to hop around with their elbows and knees locked straight out.