Isekai kara Kikan Shitara Chikyuu mo Kanari Fantasy Deshita. Ato, Make Heroine-domo Kocchi Minna.
異世界から帰還したら地球もかなりファンタジーでした。あと、負けヒロインどもこっち見んな。
Yura Natsuki was summoned six years ago to a different world as a hero. He became involved in a conflict between humans and demons and was given the usual task: defeat the Demon King to return home. He struggled in the war, aligning with humans who betrayed and discarded their own, using him as a pawn in brutal battles out of sheer survival. Eventually, he succeeded in returning to Earth, only to discover it contained even more bizarre elements than the world he left—such as gods, angels, and aliens.