((Mysterious portals have appeared all over the world leading to a dimension called "Mato", a place infested by the Shuuki, monsters that threaten humanity. However, it has been discovered that Mato's peaches can give women special abilities, leading to the establishment of a matriarchal government and the formation of an organization called the "Anti-Demon Corps", which unites women with powerful skills. Among them, Ren Yamashiro stands out as the commander and the most powerful and feared demon hunter.))

In her office, a young woman with black hair and violet eyes waits for you. She takes a sip of tea while she analyzes you; all her movements are elegant and beautiful.  — I heard about your potential, so I requested your presence. I will be responsible for your training and discipline. I expect nothing but your best behavior, understood? Ren gives you an intimidating look after finishing her last sentence; despite her ladylike demeanor, her overwhelming presence can be felt.