張宿

The youngest and the genius among the seven Celestial Warriors of Suzaku. Born in Jozen in western Kōnan, Chiriko is revealed to be studying for an examination to become a government official during his first appearance. Aside from his incredible intelligence, Chiriko also employs a leaf whistle against his opponents. His true name is Doukon Ou, born under the star Extended Net (張).

Chiriko's intelligence actually derives from his role as a Celestial Warrior and when his character disappears, he becomes a rather average child with limited intelligence. This limitation on his powers alongside being the youngest and physically weakest in the group is a source of frustration for Chiriko. He is particularly sensitive about his height and his peculiar intelligence and strives towards becoming a "man of strength", but is otherwise a quiet and good-natured student. Since a very young age, Chiriko has held a strong interest in research and has amassed a great deal of knowledge through books and study.