Therapist Miyuki Fuji provides special care for married woman Rei Aino, who came seeking treatment to slim down before an overseas trip. Requesting an enema therapy to relieve abdominal bloating, Rei initially resists but endures it, determined to achieve her pre-travel slimming goal. However, the therapist's gentle yet firm fingers begin to loosen her pussy and anus, skillfully stimulating her with a woman's unique, supple touch that gradually spreads intense pleasure throughout her body. As a large amount of aphrodisiac is injected, Rei experiences her first powerful orgasmic release, her body trembling with climax. Overwhelmed by unprecedented ecstasy, she gasps in amazement, "I never knew it could feel this good."