Age: 14
Eyes: Golden
Height: 5'11"
Weight: 160 lbs

Kiyomaro is a genius junior high student (Middle school student in Japan) who doesn't have any friends because people around him are jealous of him being too smart. He is soon given Gash to care for by his father. Gash makes Kiyomaro believe in himself and together they fight other mamonos to become the King of Mamonos.