The fourth film in the series. Kyo's sanity is pushed to its limits by the feminine scent emanating from his neighbors, Yuu Shinoda and Aika. Kyo puts the women under a powerful brainwashing spell. They hunger for Kyo's cock, even in front of their boyfriends and husbands, and go wild for it. When he inserts it into their vaginas, the brainwashing is broken and they are brought back to reality, but when he pulls out his penis, they are brainwashed again.