--- title: "Tsui Yuri ~Okaa-san ni wa Naisho da yo~" description: "Ichika and Futaba are so close it even surprises their friends and family at times. Ichika, the diligent, stubborn older twin, and Futaba, the childish, sociabl" image: "https://t.vndb.org/cv/41/112441.jpg" --- # Tsui Yuri ~Okaa-san ni wa Naisho da yo~ ![Tsui Yuri ~Okaa-san ni wa Naisho da yo~](https://t.vndb.org/cv/41/112441.jpg) **Alternative Title:** つい・ゆり ～おかあさんにはナイショだよ～ **Developer:** eye★phon **Release date:** Mar 25, 2016 **Platform:** Windows, Linux, macOS **Language:** English, Spanish, Japanese, Russian, Vietnamese, Chinese (simplified) **Rating:** 6.8/10 (600 votes) ## Description Ichika and Futaba are so close it even surprises their friends and family at times. Ichika, the diligent, stubborn older twin, and Futaba, the childish, sociable younger twin, are an inseparable pair. But there's more to their love for each other than first meets the eye. Growing up, the two did everything together. No matter where they went, the twins were never apart. And even now that they've grown up, their personalities diverging and leading them to different hobbies, they're still as close as can be. For Ichika, the responsible big sister, looking out for childish, spoiled Futaba has become an everyday occurance, both at home and at school. But one day, worried that the twins are growing too close, their mother chastises them, explaining that there's a difference between being supportive of each other and being codependent. Regardless of how close they are, she says, they can't stay together forever. With that admonition, the twins' relationship begins to change. Lurking beneath Ichika's wish to see Futaba happy is a different feeling, one that torments her. A desire that cannot be fulfilled. And as their relationship changes, Futaba grows restless, seeing her wish to always be by Ichika's side drifting further and further away. What awaits these twins, who harbor feelings stronger than mere sisterly love? What form will their relationship take, and what conclusion will their story reach? [Summary from [MangaGamer](http://mangagamer.org/tsuiyuri/)] ## Characters ### Sakura Futaba (佐倉 双葉) "I’m going to show you just how much I love you, so don’t take your eyes off me, okay?" A happy-go-lucky ball of energy who doesn’t let common sense get in the way of her feelings, Futaba is not the brightest bulb in the box. Futaba always trusts her emotions, so she makes no attempt to hide her love for [url=/c43540]Ichika[/url], showing it in word and deed. Whether in the privacy of their house or in the school hallways, Futaba will hold Ichika’s hand, or give her a hug, or even lick her ear at times. Fortunately, Futaba's friends and family tend to dismiss that as part of her outgoing nature, so they don’t think much of it. Futaba is a natural athlete and a member of the tennis club. Her grades aren’t the best, but that doesn’t bother her much since she can always rely on Ichika for help. Ichika starts to distance herself from Futaba after their mother’s warning, but this only leaves Futaba confused. Why is Ichika acting so weird? Futaba makes it her mission to get their relationship back on track. [From [url=https://www.mangagamer.com/detail.php?product_code=1074]MangaGamer[/url]] - **Gender:** Female - **Hair:** Twin Tails, Waist Length+, Wavy, Green, Blunt Bangs - **Eyes:** Brown, Tareme - **Body:** Teen, Slim, Pale, Small Breasts - **Clothes:** School Uniform, Pajamas, Hair Tie, Slippers - **Engages in:** Cooking, Teasing, Tennis, Flirting, Sororicide, Avoidable Murder - **Personality:** Yandere, Friendly, Clumsy, Energetic, Honest, Immature, Sister Complex, Emotional, Puffy, Third Person - **Role:** Full Sister, Twin Sister, Homosexual, School Tennis Club Member - **Subject of:** Fainting, Eating Disorder - **Voiced by:** Ayase Akari ### Sakura Ichika (佐倉 一果) "You can’t tell anyone else about us kissing and sleeping together, okay? It’s our little secret." A kind, responsible girl with endless patience, Ichika is an exemplary student and a member of the Student Council. More down-to-earth than [url=/c43541]Futaba[/url], she tends to stubbornly consider only the facts rather than consulting her feelings when making decisions. Taking care of Futaba has long since become part of Ichika's daily routine, and the sight of Futaba's smile is always enough to make Ichika smile in return. Although Futaba and Ichika are twins, Ichika sees herself as the older sister. Since she mostly acts on logic rather than her own feelings, she has trouble facing her love for Futaba. Ichika has secretly been fretting that, even though she and Futaba are twins, they won’t be able to stay together forever, so her mother's warning sets Ichika on a path of distancing herself from Futaba. [From [url=https://www.mangagamer.com/detail.php?product_code=1074]MangaGamer[/url]] - **Gender:** Female - **Hair:** Blond, Long, Wavy - **Body:** Teen, Slim, Pale, Medium Breasts - **Clothes:** School Uniform, Skirt, Slippers, Pleated Skirt - **Personality:** Proactive, Yandere, Relaxed, Kind, Stubborn, Serious, Jealous, Watashi, Blunt - **Eyes:** Green, Tareme - **Role:** Twin Sister, Student Council Member, High School Student, Homosexual, Older Sister - **Engages in:** Parricide, Matricide, Avoidable Murder - **Subject of:** Flirting, Completely Avoidable Death - **Voiced by:** Tachibana Mao ### Kohinata Saki (小日向 沙希) "It's not every day you see such close sisters. You two look more like a pair of lovers." The twins' childhood friend and a classmate of [url=/c43541]Futaba's[/url], Saki is a talented cook who pampers her friends with all the love and warmth of a new bride. Her deep concern for her friends leads her to being overprotective, and she can be as fierce as a mother cat with her kittens when it comes to any perceived threat. Saki is a member of the tennis club, and despite her docile appearance, she’s a gifted athlete. Since they're in both the same club and the same class, Saki looks out for Futaba when [url=/c43540]Ichika[/url] isn’t around. [From [url=https://www.mangagamer.com/detail.php?product_code=1074]MangaGamer[/url]] - **Gender:** Female - **Hair:** Blue, Hime Cut, Waist Length+ - **Body:** Teen, Slim, Pale - **Clothes:** School Uniform - **Engages in:** Cooking, Tennis, Not Sexually Involved - **Eyes:** Blue, Tareme - **Personality:** Friendly, Kind, Mature, Jealous, Sensitive - **Role:** Childhood Friend, Classmate, High School Student, School Tennis Club Member - **Voiced by:** Yukimiya Akane ### Mikage Yuri (御影 百合) "[url=/c43543]Saki[/url] and I have been best friends with you two since kindergarten. So, you know, we pick up on these things." The twins’ childhood friend and a classmate of [url=https://vndb.org/c43540]Ichika'[/url], Yuri is the easygoing, freewheeling sort, though her jokes make her sound like a dirty old man. She enjoys ogling girls' panties and takes great pride in her role helping along the development of Saki's breasts. Gifted with keen intuition, Yuri is always there for her friends when they need her, even if they themselves don’t know it. She’s a smart girl, but she conks out after the slightest bit of exercise. Yuri is a member of the literature club and something of an otaku. Yuri is the darling of their all-girls school, especially to the underclassmen, and often finds love letters in her locker. She enjoys--no, she revels in being so popular. [From [url=https://www.mangagamer.com/detail.php?product_code=1074]MangaGamer[/url]] - **Gender:** Female - **Hair:** Pink, Shoulder-length, Mullet, Shaggy - **Body:** Teen, Slim, Pale - **Eyes:** Amber - **Personality:** Otaku, Pervert, Carefree, Friendly, Smart - **Role:** Childhood Friend, Classmate, High School Student, Homosexual, Popular, School Literature Club Member - **Engages in:** Teasing, Not Sexually Involved - **Clothes:** Loose Ribbon Tie, Blazer School Uniform - **Voiced by:** Tezuka Ryouko ## Shops - [Official Website](http://www.cyc-soft.com/eyephon/002/index.html) - [Steam](https://store.steampowered.com/app/4093400/) - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010098.html) ## Releases ### Japanese - **2016-03-25**: Tsui Yuri ~Okaa-san ni wa Naisho da yo~ Download Edition - [Official website](http://www.cyc-soft.com/eyephon/002/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=18071), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ010098.html), [Gyutto](https://gyutto.com/i/item165780), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0135138/), [DL.Getchu](http://dl.getchu.com/i/item1005495), [DMM](https://dlsoft.dmm.co.jp/detail/ggs_1038/) - **2016-04-22**: Tsui Yuri ~Okaa-san ni wa Naisho da yo~ Deluxe Edition - [Official website](http://www.cyc-soft.com/eyephon/002/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=18071) - **2016-04-22**: Tsui Yuri ~Okaa-san ni wa Naisho da yo~ Regular Edition - [Official website](http://www.cyc-soft.com/eyephon/002/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=18071) - **2025-10-22**: Tsui Yuri ~Okaa-san ni wa Naisho da yo~ Uncensored Patch - [Official website](https://mega.nz/folder/qdQnELCA#w5qs2NQEj9OHk87oUzBY0w) ### Chinese (simplified) - **2017-04-28**: Shuangsheng Baihe ~Yao dui Mama Baomi o~ - [Official website](http://weibo.com/ttarticle/p/show?id=2309404101584333217068#_0) - **2024-09-04**: Shuangsheng Baihe ~Yao dui Mama Baomi o~ - [Official website](https://weibo.com/ttarticle/p/show?id=2309405075020891160668) - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - Censored Edition - [Official website](http://mangagamer.org/tsuiyuri/), [Steam](https://store.steampowered.com/app/4093400/), [SteamDB](https://steamdb.info/app/4093400/info/) - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - 18+ Patch - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - [MangaGamer](https://www.mangagamer.com/r18/detail.php?product_code=1074) ### Russian - **2017-10-08**: Dve lilii ~Pust' eto budet sekretom ot mamy~ - [Official website](https://pearltales.wordpress.com/2017/10/08/tsui-yuri/) ### English - **2018-09-06**: Sisterly Bliss ~Don't Let Mom Find Out~ - [Official website](http://mangagamer.org/tsuiyuri/), [MangaGamer](https://www.mangagamer.com/r18/detail.php?product_code=1074) - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - Censored Edition - [Official website](http://mangagamer.org/tsuiyuri/), [Steam](https://store.steampowered.com/app/4093400/), [SteamDB](https://steamdb.info/app/4093400/info/) - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - 18+ Patch - **2025-12-04**: Sisterly Bliss ~Don't Let Mom Find Out~ - [MangaGamer](https://www.mangagamer.com/r18/detail.php?product_code=1074) ### Spanish - **2020-04-01**: Tsui Yuri: Que mamá no se entere - [Official website](https://ononoki.com/proyectos/tsuiyuri/) ### Vietnamese - **2023-10-12**: Bách Hợp Song Sinh - [Official website](https://drive.google.com/file/d/1uTQ6GWvOYqeF42enYDxM0UzbghoTuoOy/view?usp=sharing) ## Tags ADV, Lesbian Sex, Rape, Sister/Sister Incest, Blood-related Sister/Sister Incest, Girl x Girl Romance, Sister/Sister Romance, Protagonist with Voice Acting, Multiple Protagonists, Multiple Endings, Yandere Heroine, Sexual Slavery, Bondage, Madness, Evil Route, Under the Same Roof, All-girls School, Lesbian Heroine, Childhood Promise, Protagonist with a Face, Sex in Public Places, Twin Tail Heroine, Sixty-nine, Protagonist's Twin as a Heroine, Tribadism, Cunnilingus, Student Council Member Protagonist, Relationship Chart, Twincest, Homicide, Naked Sprites, Yandere Protagonist, Siscon Protagonist, Normal Scene Recollection, Only Protagonist's Sisters as Heroine(s), Bathroom Sex, Girl x Girl Romance Only, Sex at School, Forbidden Love, No "Keep Voice on Click" Option, Lesbian Sex Only, Protagonist's Younger Sister as a Heroine, Panty Gag, Short Sexual Scenes, Female Protagonist, Mindbreak, Masturbation in front of an Audience, Vibrators, Lesbian Rape, Completely Avoidable Protagonist Death, Completely Avoidable Protagonist Rape, Completely Avoidable Rape by the Protagonist ## More Games from eye★phon - [Hougen x Kanojo @ Hakata](https://pinovel.net/v11775) - [Tsui Yuri ~Okaa-san ni wa Naisho da yo~](https://pinovel.net/v13107) --- *View the full details at [pinovel.net/v13107](https://pinovel.net/v13107).* ```json {"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v13107#game","name":"Tsui Yuri ~Okaa-san ni wa Naisho da yo~","description":"Ichika and Futaba are so close it even surprises their friends and family at times. 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