Hibiki Natsume joins the long-awaited hot-spring trip where a beautiful woman obeys every command. The moment she reaches the inn, she is fitted with a remote vibrator and made to expose herself in humiliation. After body-washing play in the public bath comes obedient sex in the outdoor spring, followed by bondage, toy torment, and more submissive fucking. In the banquet hall, powerful men take turns pounding her in a rough orgy. Giving in to everything awakens a new side of Hibiki and brings out her deeply masochistic desires.