Kakeru Miwa, a high school student, gets involved in a battle between powered suits and oni that emerge from the demon world to prey on humans. Only “Yoroi,” powered suit that is a fusion of ancient secrets and cutting-edge technology, can protect people from onis. Kakeru puts on a Yoroi by chance and becomes a semi-official member of a team that fights against onis. Determined to become a hero, Kakeru battles Onis to protect Ouka Myojin, the shrine maiden destined to save the world. (Source: ANN)
