Kanon, a female college student born into a wealthy family, has always lived a graceful and peaceful life. However, one day, her home is visited by Kitashin, a man who once served as her father's servant. Surprised by his sudden appearance, Kanon still invites him inside. That evening, the dinner Kitashin prepared contains a drug that clouds her consciousness. Kanon loses awareness and gradually falls under his control. Surrounded by Kitashin's accomplices, her body is violated and her womb is filled with semen. Eventually, she becomes pregnant with a child whose father she cannot identify.