[ Anime Sex Tube ] Tamashii Insert - Episode 1

Naoto is an ordinary guy who has two beautiful women enter his life after his mother dies and his father remarries. Yui, his stepsister, and Sachiko, his stepmother. As time passes, however, Naoto becomes concerned about Yui's emotional distance from him. He looks at his phone one day and discovers a miraculous app that promises to help the user understand the person of their choice. In order to better understand Yui, he immediately uses the app on her and, to his surprise, takes over her body! Naoto returns to Yui's room, puzzled, only to see her reflection in a full-length mirror. He can no longer control his desires, and feelings of lust for his sister's body erupt. Naoto delights in the pleasures of an inexperienced woman after playing with Yui's receptive breasts and erect nipples in his uncontrollable sexual desire.