Toramizu Ginta is a young boy always dreaming of a magical world out of his reach. But his dream isn’t too far off, as Ginta one day is given the chance to enter the magical world. Entering the new place, he almost immediately finds out the existance of ÄRMS, weapons that the people of this world use. Ginta’s life changes forever as he journeys through this new world, meeting new companions and gaining fighting abilities. This land Ginta has always dreamed of isn’t some joyful place however, as he soon begins to witness first hand the harshness of the land he has found himself in.
description taken from Baka-Updates Manga