Married woman Ayane who works as a "swimming instructor" making use of her past experience. Misfortune suddenly visits her. Her parents, who ran her own business, ran away leaving her with a large amount of debt. Ayane, who was her joint guarantor, ended up shouldering her debt... Ayane, who is secretly trained by her husband, her rope that bites into her swimming suit makes her de M sexuality bloom and she becomes a sex slave and continues to serve.
