Major Hilgreitz is first seen taking care of a group of men trying to desert the gang they're members of. He has the ability to Burst with a Excadrill. The Major becomes excited at the idea of battling someone else who's able to Burst like he can. He challenges Ryouga to a battle after he and Miruto finish climbing the top of Mt. Serabales. After a long battle, he is defeated by Ryouga when the boy uses a Galvantula's web as a slingshot to easily rip through him. Major Hilgreitz first appears in Volume One, Chapter Two.