King of Wonder Island
Ogre-king Gyaska (Gyaska Daimao) is a demon who is ruler of Wonder Island.
Ogre-king Gyaska is first mentioned in the chapter "Hello, Wonder Island", and appears in the chapter "". His tears are an ingredient in Senbei's father's Fall-Go-Boom Love Potion. Senbei Norimaki gets tears from him thanks to Arale Norimaki and Gatchan.