The Sukaku clan was a distinguished family of shamans, known for protecting mankind from divine beasts. The elder brother Mutsuki excelled at spiritual magic and the family had high hopes for his future. But his sister Uzuki lacked any sort of spiritual power. According to the family tradition, "If you are not shaman, then you are not a Sukaku." And so Uzuki was imprisoned in the house.

Mutsuki wanted freedom for his sister, but he realized that if that they could not escape, then they would have to fight, even if that means they have to overcome his own family.……! For the sake of his sister, the big brother will stand up in an unprecedented "home" revolution fantasy!

(Source: Sunday Webry, translated)