Mizuki, who can no longer hide the debts she made from playing with hosts from her husband, finds a suspicious posting on the internet. It says that if she meets a man at a designated hot spring inn, she will be given 1 million yen. She goes to meet him half-believing, but what awaits her is a man named Sagawa, who has a perverted hobby. Mizuki had expected the worst to happen, but her reason gradually crumbles as Sagawa attacks her, repeatedly subjecting her to extreme training with ropes and candles...