Jashin Shoukan: Inran Kyonyuu Oyako Ikenie Gishiki – Episode 1 (RAW)

Fugitive Tani Ichiro, hunted for embezzlement, flees to a secluded snowy mountain and stumbles upon the eerie Munakata Residence. Welcomed by the beautiful widow and matriarch Munakata Rurie (a voluptuous, enigmatic woman), he is offered shelter in exchange for becoming a live-in tutor to her daughter, Munakata Nakoto—a sharp-tongued, sheltered virgin locked in a chastity belt. However, Rurie's true request shocks him: she demands that Ichiro become Nakoto's first sexual partner as part of a mysterious, blasphemous ritual tied to the mansion's dark secrets. As Ichiro navigates the opulent yet sinister household, including interactions with the submissive maid Takahara Ren, tensions rise with forbidden temptations and hints of an otherworldly evil lurking within the estate. The episode builds erotic tension through teasing encounters, power dynamics between the busty mother and defiant daughter, and the looming threat of the sacrificial ceremony, culminating in Ichiro's reluctant descent into carnal indulgence. This OVA #1 faithfully captures the original game's atmosphere of taboo lust, giant breasts, mother-daughter themes, and ritualistic defilement in a secluded, atmospheric setting.