The lonely Schoolgirl which 'Kana' is Home, but always feels sense of estrangement at school…. One day meet with Molester by a train on the way home for the first time. The obstinate Hentai act of the Molester gradually escalates to the girl who is without being able to give the voice. The girl who is awakened to Sei in exchange for purity. But the girl falls into the world of the Immorality when she knew that real nature of the Molester is father….
