The word "Irregular" was created to define Issei Hyoudou. He is the first Youkai to ever have wielded the Longinus Boosted Gear. As if being the Sekiryuutei was not enough, he is also one of the few remaining male specimens of his dying race, the Nekoshou's. Being thrust into a world of supernatural from birth, he has to come to terms with who he is, and how to save his dying race.