--- title: "Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken" description: "When he wakes up one morning, the protagonist who is an only child, finds himself having an older sister―― She has tanned skin and a voluptuous body. While bein" image: "https://t.vndb.org/cv/76/69176.jpg" --- # Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken ![Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken](https://t.vndb.org/cv/76/69176.jpg) **Alternative Title:** エッチなお姉ちゃんが、褐色巨乳の悪魔だった件 **Developer:** Onee-chan Land **Release date:** Sep 29, 2023 **Platform:** Windows **Language:** Japanese **Rating:** 6.9/10 (21 votes) ## Description When he wakes up one morning, the protagonist who is an only child, finds himself having an older sister―― She has tanned skin and a voluptuous body. While being confused, she takes his underwear off as a matter of course, and gives him a blowjob. My brother's sperms belong to his sister...... Having said that, she starts sucking his cock. Is this a dream, or is this some kind of delusion―― But in reality, his self-proclaimed sister―― Is a demon who has been summoned to this world accidentally～a succubus. The demon calls herself Leviola, because she needs human life force in order to return to her world, she puts his cock into her mouth and sucks him harder. Let me have plenty of your sperms♪ Having said that, Leviola smiles. [Translated and edited from [Getchu](https://www.getchu.com/soft.phtml?id=1241649)] ## Characters ### Takanashi Yuuto (小鳥遊優斗) - **Gender:** Male - **Aliases:** 優ちゃん, Yuu-chan - **Hair:** Black - **Eyes:** Hidden - **Body:** Olive, Tentacle, Multiple Penises - **Personality:** Pervert, Flustered, Adaptable - **Role:** High School Student, Living Alone ### Leviola (レヴィオラ) A succubus who suddenly appeared, claiming to be the protagonist’s older sister. She possesses an incredibly alluring figure. She boasts that she will grant him every pleasure he desires in exchange for returning her to her original world, and is draining his vitality as she pleases. Although she gives off a gentle, laid-back impression, her personality perhaps befitting a demon is extremely domineering and self-centered. [From [url=http://www.gocha-mix.com/ol/ol03/index.html#jump_chara]official site[/url]] - **Gender:** Female - **Hair:** Blond, Red, Long, Multicolored - **Eyes:** Violet - **Body:** Dark, Nail Polish, Pointed Ears, Makeup, Tanned, Tentacle, Multiple Penises, Bat Wings, Long Tongue, Demon Tail, Ram Horns, Big Breasts - **Clothes:** Glasses, Thigh-high Stockings, Maid's Dress, Detached Sleeves, Bunny Dress, Old Type School Swimsuit, Nipple Covers, Thong Panties, Off-The-Shoulder Sweater, High Heeled Shoes - **Personality:** Deredere, Pervert, Selfish, Mischievous, Puffy, Jealous, Competitive, Sadist - **Role:** Domestic Partner, High School Student, Not a Virgin, Bisexual, Succubus, Not an Anal Virgin, Ane Act, Switch - **Engages in:** Disguise, Polyamory, Bunnygirl Cosplay - **Subject of:** Penis Growth - **Voiced by:** Misonoo Mei ## Shops - [Official Website](http://www.gocha-mix.com/ol/ol01/index.html) - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01000810.html) - [Getchu](http://www.getchu.com/soft.phtml?id=1241649) ## Releases ### Japanese - **2023-09-29**: Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken - [Official website](http://www.gocha-mix.com/ol/ol01/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=34747), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=2020166), [Getchu](http://www.getchu.com/soft.phtml?id=1241646), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2332apc14421/), [Toranoana](https://ec.toranoana.shop/tora/ec/item/210006649500/) - **2023-09-29**: Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken - Yunamaro-sensei Dakimakura Cover Set Drawn For The Occasion - [Official website](http://www.gocha-mix.com/ol/ol01/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=34747), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=2020167), [Getchu](http://www.getchu.com/soft.phtml?id=1241648), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2332apc14420/), [Toranoana](https://ec.toranoana.shop/tora/ec/item/210006649499/) - **2023-09-29**: Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken - Yunamaro-sensei Dakimakura Cover Set Drawn For The Occasion - Getchu Exclusive w/ Suede B2 Tapestry - [Official website](http://www.gocha-mix.com/ol/ol01/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=34747), [Getchu](http://www.getchu.com/soft.phtml?id=1241649) - **2023-09-29**: Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken - Getchu Exclusive w/ Suede B2 Tapestry - [Official website](http://www.gocha-mix.com/ol/ol01/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=34747), [Getchu](http://www.getchu.com/soft.phtml?id=1241649) - **2023-09-29**: Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken - Download Edition - [Official website](http://www.gocha-mix.com/ol/ol01/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=34747), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01000810.html) ## Tags Male Protagonist, Heroine with Glasses, Only a Single Heroine, Succubus Heroine, Multiple Penises, Single Footjob, Heroine with Big Breasts ## More Games from Onee-chan Land - [Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken](https://pinovel.net/v46095) - [Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken 2 ~Arata na Akuma Mirisu Toujou ♪~](https://pinovel.net/v48767) - [Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken 3 ~Onee-chan-tachi to Gakuen Ecchi♪~](https://pinovel.net/v51280) --- *View the full details at [pinovel.net/v46095](https://pinovel.net/v46095).* ```json {"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v46095#game","name":"Ecchi na Onee-chan ga, Kasshoku Kyonyuu no Succubus Datta Ken","description":"When he wakes up one morning, the protagonist who is an only child, finds himself having an older sister―― She has tanned skin and a voluptuous body. 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