Sai (Tsunagi Tsubasa) was married to her university senior Shinji and lived a fulfilling life as a housewife. One day, the shower at their home broke down, so she asked her husband's classmate and her own senior, plumber Nakamura, to fix it. Nakamura felt jealousy and inferiority towards his classmate's happy family. He took out his frustrations on unwilling Sai and raped her. Although Sai was deeply hurt by her husband who always cared for her, her body was gradually taken away…
