Alternative:
The Black Demon King, 黒の魔王
Kuro no Maou summary: Kurono Maou is a high school student who is sensitive of his sharp eyes and bad expression. No girlfriend but gifted with friends in his own way, he had been living a peaceful life. But one day, without any reason, Kurono was attacked by a mysterious headache while in the literature clubroom and fainted. When he finally awoke…Swords & magic, filled with monsters, an orthodox different world summoning.
