Ryugu is a Robot Dragon Warrior Knight and the leader of the Daigunder and Dragon Unit. He uses Cluster system just like Daigu, Ginzan and DragoBurst.
Personality[]
Ryugu's personality came from Akira's, so when they first met they bicker around. This was expected by Profesor Hajime.
Abilities[]
Ryugu is the leader of Daigunder unit; Ryugu's attacks are Knight Slash and Knight Quake.