A tall actress, Erika Kinonoha, enjoys hiking in the mountains, surrounded by nature and lush greenery. Everything she sees is a different world that you can't experience in Tokyo! How will Kinonoha, who has been relaxed by bathing in the negative ions of nature, become submissive? When she is asked to masturbate, she opens her morning glory patterned yukata and starts playing with her shaved pussy with her legs spread wide on the veranda, which is completely visible from the outside. She presses the electric massager against her and moans even louder, her whole body trembling as she climaxes! She then inserts her fingers in and out, and when she climaxes boldly and violently, she is left in a daze...! Kinonoha is excited about her first mixed-gender open-air bath, and soaks in the hot spring where a previous customer is waiting. A stranger who has been watching her suddenly approaches her, and suddenly she is given a deep kiss. In the hot water, her breasts are squeezed from behind, and with her eyes glazed over, Kinoha becomes 'obedient'. Pushed by the sense of freedom, she seems to have decided to surrender to the 'fate' of this once-in-a-lifetime encounter with the man... The two of them rub their bodies against each other, slippery with body soap, and no one can stop them! When they penetrate each other raw, intertwined in the hot spring, the sperm that was ejaculated inside them instinctively gushed out! After that, Kinoha is placed on a swivel chair and is pounded by the lustful male customers one after another in an orgy, and the men's mixed semen gushed out!