Drovain, the kaibutsu that nests inside Monomasa’s body envelops the outside of his body in this form, transforming him into the villain “Monstrooper”.

Being an amorphous creature, Drovain wraps around Monomasa’s body, becoming both an armor to protect his body and a weapon to enhance his physical abilities.

With its elasticity, he is able to battle his fellow Kaibutsu by using inhuman tactics and combat techniques, and rescue their eaten victims.