Nageki no Kenkou Yuuryouji | Episode 3

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Hiroe Ogawa is a healthy, normal girl with an extraordinary, private dilemma. Hiroe is unable to reach sexual climax under any circumstances. Over Hiroe's objections, older housemate Mayaka and landlady Yayoi use a variety of sexual techniques, appendages, and even hypnotism in order to help Hiroe achieve her elusive goal.

(Source: Anime News Network)