Hasuno Miu, a high school teenager, loves his older brother Kayichiro and considers him the most tender and good man of all time. Miu finds out that a suspicious pervert is hiding in the community, and, to her surprise, meets a couple that corresponds to this description. Miu runs back to his house only to find that a man and a woman is not anyone else, like his brother Keyichiro and his caused demon sex-slave Manimani. It turns out that Kayichiro-Wizard, who was able to cause removal from the depths of hell. With all that she thought about his broken brother in oblivion, Miu had no idea what to do.