Every Monday, the married woman heads to her husband's home. There, she relieves her accumulated sexual stress through her husband's strict yet pleasurable BDSM training. One day, the wife suddenly calls, and minutes later the doorbell rings. As she politely greets, "Master, thank you for having me again today," she is immediately turned around and presented. Harsh training begins without mercy, and the wife pleads for forgiveness. But this session isn't over yet. Within the ongoing cycle of their daily routine, she continues seeking new excitement.