"Daß ich erkenne, was die Welt im Innersten zusammenhält, schau' alle Wirkenskraft und Samen, und thu' nicht mehr in Worten kramen." "That I realize what keeps the world together at heart, look at all effectualness and seeds and don't rummage in words anymore." At a street that looks nostalgic, in Shikou Village. Ritsuka Tachibana, a second year high schooler who attends Shikou Gakuen. She spends a peaceful school life with her mother Maria, but the balance will collapse one day---. Is that a person or a devil? This is a story of a girl who is being loved and charmed by beautiful devils.