Coral Q and Grubb are the pioneering Mamodo pair to confront Zatch and Kiyo following the "Milordo-Z" crisis. Their powers revolve around robotic transformations. Koral Q's transformation theme music is notably exaggerated, reminiscent of tokusatsu series, while Grubb is a conceited individual who considers himself intellectually superior to others. The duo values research as crucial as spells and abilities in defeating opponents, hence they spied on numerous Mamodos using Coral Q's antenna, including those who battled Milordo-Z (Zofis) at the Debero Ruins.
Roboruga: Koral Q emits a laser from its antennas.
Roboruk: Koral Q transforms into a useless robot.
Ra Robogarugu: Koral Q becomes an energy-reflecting robot.
Bizamu Roboruga: Koral Q fires a missile that splits into two.
Muromu Roboruk: Koral Q morphs into a rubber-made robot.
Digou Roboruk: Koral Q turns into a robot with motorcycle legs.
Gigano Roboruga: Koral Q releases a giant laser.
Ganji Rudo Roburon: Koral Q becomes a robot equipped with controllable shields.










