Kōji Mori

“Why are there some people who Summon painful, horrible battles where their blood flies and their bones ache? When you were little adults probably told you many times that "Being a good fighter doesn't get you anywhere." And you probably knew it was the truth. In progressing, civilized countries, having "power" means economical power. The same applies to "strength." These people can't understand the feelings of those who want physical power anyway, and spend their days sweating and fighting in order to get direct stimulation. I (the author) was the same way.... but after starting the manga, I felt like I got closer to finding my answer. It comes from the strong feeling of "Wanting to change yourself". That reason alone outweighs the pain, fear, and meaning of fighting.”
― Kōji Mori, ホーリーランド 18 [Holyland 18]