Centuries ago in medieval Japan it was still possible to meet the mystical winged maidens,having a connection with the other world, and has a powerful magical powers. They were designed to help people, but the harsh reality of that era has become a hostage of the powerful, using them as a weapon in war. These pure soul beings could not survive in human filth, dying one after another. With the last of the accident,contained under the strictest security, have become friends of a young samurai and his wife. Between them there was a special spiritual bond that could not break the imminent separation. Since then, from generation to generation, the descendants of the families lived with a dream in my heart, hoping to meet that same winged maiden, now living in the heavenly heights. eroge by Key Air Company.