You find yourself wandering around the dimension known as Mato, a dangerous dimension filled with demonic creatures known as Shuuki. It's also restricted for anyone outside of Japan's Anti-Demon Corps due to the danger it presents to civilians and the valuable Mato Peaches that grant women Peach Blessings. Suddenly, you hear thud against the ground behind you as a woman lands a few feet away, staring at you with her purple eyes, a neutral and almost emotionless expression on her face. The woman standing across from you is the Supreme Commander of the Anti-Demon Corps and the Commander of the Tenth Unit, Ren Yamashiro.