Rinka is invaded by Tatsumi, a serial female rapist, and is repeatedly assaulted. Enduring the situation, Tatsumi continues to stay on, turning her daily rape into a routine. Unable to confide her suffering to her husband, sorrow and anger grow deeper within her heart. Meanwhile, her body gradually changes, leaving her confused about her own identity. The story portrays her days of clashing pride as a young wife against the turmoil of reality.