After losing her parents in an accident, Ruka lives a modest but happy life with her Kokoro support, Donjiro. One day, a gentleman appears and offers to take Ruka in. However, this event... This pushed Ruka into even more hell... A beautiful girl who lives strong despite the unreasonable misfortune of being used as a sexual plaything by everyone. Ruka finally awakens and takes revenge on those who humiliated her by urinating on them!