Doosu

Doosu (ドース) also known as the Emperor Dragon (/エンペラードラゴン) is the dragon and father of Hakuren, Suiren, Doraim, Sekiren, and Domaim.

He would first meet Taiju Village chief Hiraku Machio, after his daughter Hakuren attacked the village as part her wanting test the Village Chief. He would apologize with his entire immediate family to the Chief for the attack and order his daughter to remain there to make up for her misdeeds.

Later he would contribute gifts to the village in form of rare trees/crops for their farms and valuable treasures. It was thought this particularly to due in taking in his troublemaking daughter.