My Sister-in-Law Won't Let Go of My Cock
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What the game is
My Sister-in-Law Won't Let Go of My Cock is a hentai visual novel for Windows. Its Nutaku page names Tensei Games as the publisher and Appetite as the developer, and lists English as the language of the release. It is sold as a one-time download purchase rather than as a free game or a subscription, and the main heroine is voiced in Japanese.
The setup is small and domestic. A man returns to the hot spring inn where he grew up to help for the summer, and the person he ends up spending it with is the inn's proprietress, who is also his late brother's wife. That is the whole frame: a single-heroine story in a family business, with voice work for that heroine and a built-in gallery. It is a small, censored release, and the store pages make no claim to a large cast or a long campaign.
How it plays
The game is a visual novel, so the player reads a story told in the first person by Takeo Kashima. His parents are away from the inn for a few days to attend a meeting in town, and with 2 pairs of hands missing the small inn cannot keep up with the work. That is why he is called back for the summer. He is working in the inn's office when the proprietress, Yukari Kashima, comes in. She is his older brother's wife. His brother died of illness the year before, which makes her a widow, and Takeo thinks it inappropriate that she jokes with him the way she does.
The page gives the shape of the relationship in a few lines. In front of guests Yukari is a gentle and elegant hostess, and with Takeo she is different. The story then moves to the night, where Takeo is soaking in the inn's open-air bath, the pride of the place, and someone else comes in. The page ends its summary there with Yukari walking in on him and Takeo asking why she is there.
The character description fills in the rest. Yukari is prone to joking as a way to cope with her husband's death, and the page calls her actually quite shy. She is also such a lightweight that a single small cup of alcohol is enough to make her silly. The grief, the shyness and the drink are the tools the story uses to explain why a composed hostess behaves as she does around her brother-in-law.
The page lists the features that shape the playing experience. It names 15 separate CGs and says there are over 80 CGs in total, and it names 15 H-scenes. There is Japanese voice acting for the main female character, a CG gallery mode and a scene replay mode. The gallery and the replay mean a reader can return to any scene seen so far without replaying the story, which matters in a game built around a modest number of scenes.
The pages give no play time and no number of endings. Yukari is the one heroine either store profiles; MangaGamer's Characters tab holds her entry alone, with wording that matches Nutaku's almost line for line. MangaGamer also files the game in its Nukige section and under the categories Family and Big Boobs, labels that sit beside the Hentai tag Nutaku uses.
Content and themes
The Nutaku page tags the game Hentai, Mosaic Censorship and Oral Sex, and files it under the Visual Novel genre. The themes behind them are an in-law relationship, a widow and her brother-in-law, and a family-run hot spring inn, with the widow's coping through teasing named as her motivation.
Mosaic censorship is the practical point for a reader choosing a version. The tag is on the Nutaku page, and the MangaGamer page for the same game lists its rating as with mosaics. Neither page offers an uncensored version.
The anime and hentai side of the game rests on the Hentai tag, the CG-based presentation and the Japanese voice acting for the main heroine. The MangaGamer page lists the voice as female full voice, which matches the Nutaku statement about the main female character, so the audio is Japanese with English text.
Platforms and where to get it
The Nutaku page lists the platform as Windows Desktop and nothing else. The game is a download of 379.97 mb on Nutaku, with English as its only listed language. The page prints no processor or memory requirements.
The MangaGamer page lists the same game under a longer title, My Sister-in-law won't Let Go of My Cock ~Seduced by a Widowed Proprietress~, as a download. It lists the platform as Windows 10, the developer as Appetite and the publisher as Tensei Games, matching Nutaku. MangaGamer asks for a date of birth before showing the page, and Nutaku sells through an account.
Nutaku and MangaGamer are the 2 stores the game's pages name, and the pages name no developer site or other storefront.
Price and model
Yukari's story is sold as a single paid download on each store, with a buy button on Nutaku and an add-to-cart button on MangaGamer. Neither store lists paid extras or expansions for it.
Nutaku's price for the inn story, read in October 2026, is $13.99, and MangaGamer's price line that month shows $13.95. Neither page shows a discount.
Development state and version
Both stores present the game as a released product with no roadmap or planned content. In October 2026 the Nutaku page gives the version as 1 and the release date as July 29, 2024. The MangaGamer page, read the same month, gives an on-sale date of Apr 28, 2023 for its own listing. The pages do not explain the gap between the 2 dates.
Who it suits
This suits a reader who wants a single-heroine Japanese-voiced visual novel on Windows, set in a family inn with a widowed heroine, and who is comfortable with a Hentai tag and mosaic censorship. The gallery and replay modes help a reader who likes to revisit scenes.
It suits less a reader who wants an uncensored release or English voice acting, because the pages offer neither. It is Windows only on both stores, and with 15 scenes listed it is a compact game.