---
title: "Nekogami-sama to, Nanatsuboshi -Imouto no Ane-"
description: "One day, while Reiji and his sister Erika are out for a walk, Reiji slips on the stone steps of a small shrine, cracks his head, and ends up at death’s door. Fo"
image: "https://t.vndb.org/cv/51/94251.jpg"
---

# Nekogami-sama to, Nanatsuboshi -Imouto no Ane-

![Nekogami-sama to, Nanatsuboshi -Imouto no Ane-](https://t.vndb.org/cv/51/94251.jpg)

**Alternative Title:** ネコ神さまと、ななつぼし -妹の姉-

**Aliases:** ネコつぼ, Nekotsubo

**Developer:** Sweet & Tea

**Release date:** Feb 22, 2019

**Platform:** Windows, Android

**Language:** English, Japanese, Chinese (traditional), Chinese (simplified), Korean, Russian, Indonesian

**Rating:** 6.7/10 (306 votes)

## Description
One day, while Reiji and his sister Erika are out for a walk, Reiji slips on the stone steps of a small shrine, cracks his head, and ends up at death’s door. Fortunately for him, a cat-eared girl named Fuuko appears to save his life. She says she’s a god and that, in order to save him, she put three of the seven fragments of her divine powers into him, and now they’re trapped inside.

If that all wasn’t bad enough, Erika seems to have lost her memories of the accident that nearly took Reiji’s life… and mysteriously enough, she’s sprouted cat ears of her own! Reiji decides to set that problem to the side for the moment, though, because, as it turns out, not only do gods need all their powers, ordinary people don’t do so well with shards of divinity stuck inside their skulls! Unless Reiji and Fuuko can get the fragments out of Reiji and back where they belong, both of them are doomed to die. Thus, the two join forces to extract the fragments!

Unfortunately, step one of most of Fuuko’s brilliant schemes for getting her powers back is: kill Reiji. She can only think of one one way to safely remove them—shocking Reiji’s heart to its very core. The one silver lining to all this is, their school, Mahiro Academy, is soon to go on summer vacation, so they’ve got a lot of free time.

It’s a life-or-death race against the clock for Reiji and Fuuko!

[From [Official Website](https://sekaiproject.com/portfolio-item/the-seventh-sign-mr-sister/)]

## Characters
### Aoba Reiji (青葉 怜司)
- **Gender:** Male
- **Hair:** Brown, Short, Straight, V Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Trousers, Shirt, Belt, Loafers, Loose Necktie
- **Engages in:** Cooking, Shopping, Self-harm
- **Items:** Knife
- **Personality:** Ore, Protective
- **Subject of:** Hypnotism, Mind Control, Child Abuse, Malevolent Possession, Attempted Homicide, Betrayal, Parasitism
- **Role:** Classmate, Older Brother, Half-brother, Eleventh Grader
- **Eyes:** Cyan

### Aoba Erika (青葉 英梨歌)
- **Gender:** Female
- **Hair:** Blond, Twin Tails, Waist Length+, Wavy, V Bangs, Parted in Middle, Sidehair
- **Body:** Teen, Slim, Pale, Kemonomimi, Medium Breasts
- **Clothes:** School Uniform, Miniskirt, Thigh-high Stockings, Hairpin, Hair Flower, Corset, Yukata, Clothing with Ribbons, Ribbon Hair Accessory, Ribbon Hair Tie, Pleated Skirt, Sundress, Mary Jane, Loose Ribbon Tie
- **Eyes:** Green, Tareme
- **Subject of:** Bullying, Hypnotism, Child Abuse, Injury, Kidnapping, Malevolent Possession, Attempted Homicide, Memory Alteration
- **Role:** Kouhai, Half-Japanese, Younger Sister, Half-sister, Tenth Grader
- **Personality:** Kind, Naive, Food Lover, Brother Complex, Watashi, Cheerful
- **Engages in:** Self-sacrifice, Drawing
- **Voiced by:** Kano Manaka

### Nanahara Fuuko (奈々原 風子)
- **Gender:** Female
- **Alias:** Puuchin
- **Hair:** Violet, Shoulder-length, Straight, Blunt Bangs, Sidehair
- **Body:** Teen, Slim, Pale, Kemonomimi, Medium Breasts
- **Clothes:** School Uniform, Miniskirt, Thigh-high Stockings, Bell (accessory), Lolita, Corset, Blouse, Clothing with Ribbons, Ribbon Hair Accessory, Shrug, Pleated Skirt, Pinafore Dress, Mary Jane, Kemonomimi Hood, Loose Ribbon Tie
- **Role:** Villain, Classmate, Transfer Student, Popular
- **Eyes:** Blue, Tareme
- **Personality:** Pretending, Short-tempered, Energetic, Sly, Nanoja, Wachiki
- **Engages in:** Planning, Hypnotism, Blackmail, Shapeshifting, Kidnapping, Self-sacrifice, Betrayal, Malevolent Possession, Attempted Murder, Naked (Not Sexually Involved)
- **Voiced by:** Fujisaki Usa

### Gotou Makoto (後藤 誠)
- **Gender:** Male
- **Hair:** Brown, Short, No Bangs, Slicked Back
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Headband, Jeans
- **Eyes:** Amber
- **Personality:** Ore
- **Role:** Friend, Classmate, Eleventh Grader
- **Engages in:** Not Sexually Involved
- **Voiced by:** Yoshino Ippei

### Puuchin (ぷーちん)
- **Gender:** Unknown
- **Engages in:** Shapeshifting
- **Role:** Cat
- **Subject of:** Malevolent Possession, Pre-Story Death
- **Body:** Non-Humanoid
- **Voiced by:** Fujisaki Usa

### Suzushiro Saki (鈴白 咲妃)
- **Gender:** Female
- **Hair:** Blue, Twin Tails, Long, Straight, Blunt Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Glasses, Knee-high Socks, Pleated Skirt, Loafers, Sleeveless Sweater, Loose Necktie
- **Eyes:** Amber
- **Role:** Classmate, Eleventh Grader
- **Engages in:** Not Sexually Involved
- **Personality:** Watashi
- **Voiced by:** Haruno Iroha

### Takahashi Yuki (高橋 有希)
- **Gender:** Female
- **Hair:** Pink, Wavy, Shoulder-length, Side Tail, Tiny Braid
- **Body:** Slim, Pale, Young-adult
- **Clothes:** Trousers, Earrings, Pendant Necklace, Blouse, Bracelet, Wedding Ring
- **Eyes:** Red
- **Engages in:** Not Sexually Involved
- **Personality:** Uchi
- **Voiced by:** Okugawa Kumiko

## Shops
- [Official Website](http://sweet.clearrave.co.jp/nekotsubo/)
- [Steam](https://store.steampowered.com/app/1250600/)
- [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister_unrated)
- [Itch](https://sekaiproject.itch.io/the-seventh-sign-mrsister)
- [Getchu](http://www.getchu.com/soft.phtml?id=1026322)

## Releases
### Japanese
- **2019-01-25**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Trial Edition - [Official website](http://sweet.clearrave.co.jp/nekotsubo/)
- **2019-02-22**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Package Edition - [Official website](http://sweet.clearrave.co.jp/nekotsubo/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=27384), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=433662), [Getchu](http://www.getchu.com/soft.phtml?id=1026321), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2095apc12647/)
- **2019-02-22**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Soft +  Dakimakura Cover - [Official website](http://sweet.clearrave.co.jp/nekotsubo/), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=27384), [Getchu](http://www.getchu.com/soft.phtml?id=1026322)
- **2019-02-28**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Download Edition - [Official website](http://sweet.clearrave.co.jp/nekotsubo/), [DMM](https://dlsoft.dmm.co.jp/detail/clear_0026/)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Censored Edition - [Official website](https://sekaiproject.com/game/the-seventh-sign-mr-sister/), [Steam](https://store.steampowered.com/app/1250600/), [SteamDB](https://steamdb.info/app/1250600/info/), [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister), [GOG DB](https://gogdb.org/product/1827581176), [Itch.io](https://sekaiproject.itch.io/the-seventh-sign-mrsister)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- - [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister/), [JAST USA](https://jastusa.com/games/skpr024/the-seventh-sign-mr.-sister), [Kagura Games](https://www.kaguragames.com/product/the-seventh-sign-mr-sister/), [Fakku](https://www.fakku.net/games/the-seventh-sign-mr-sister-english)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- 18+ Patch - [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister_unrated), [GOG DB](https://gogdb.org/product/1514645099), [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister-18-dlc/)

### Chinese (simplified)
- **2019-01-29**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- - [Official website](https://tieba.baidu.com/p/6021691502)

### Korean
- **2021-11-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- - [Official website](https://myskrpatch.tistory.com/184)

### English
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Censored Edition - [Official website](https://sekaiproject.com/game/the-seventh-sign-mr-sister/), [Steam](https://store.steampowered.com/app/1250600/), [SteamDB](https://steamdb.info/app/1250600/info/), [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister), [GOG DB](https://gogdb.org/product/1827581176), [Itch.io](https://sekaiproject.itch.io/the-seventh-sign-mrsister)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- - [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister/), [JAST USA](https://jastusa.com/games/skpr024/the-seventh-sign-mr.-sister), [Kagura Games](https://www.kaguragames.com/product/the-seventh-sign-mr-sister/), [Fakku](https://www.fakku.net/games/the-seventh-sign-mr-sister-english)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- 18+ Patch - [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister_unrated), [GOG DB](https://gogdb.org/product/1514645099), [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister-18-dlc/)

### Chinese (traditional)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- Censored Edition - [Official website](https://sekaiproject.com/game/the-seventh-sign-mr-sister/), [Steam](https://store.steampowered.com/app/1250600/), [SteamDB](https://steamdb.info/app/1250600/info/), [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister), [GOG DB](https://gogdb.org/product/1827581176), [Itch.io](https://sekaiproject.itch.io/the-seventh-sign-mrsister)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- - [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister/), [JAST USA](https://jastusa.com/games/skpr024/the-seventh-sign-mr.-sister), [Kagura Games](https://www.kaguragames.com/product/the-seventh-sign-mr-sister/), [Fakku](https://www.fakku.net/games/the-seventh-sign-mr-sister-english)
- **2022-01-18**: Nekogami-sama to, Nanatsuboshi -Imouto no Ane- 18+ Patch - [GOG](https://www.gog.com/en/game/the_seventh_sign_mrsister_unrated), [GOG DB](https://gogdb.org/product/1514645099), [Denpasoft](https://denpasoft.com/product/the-seventh-sign-mr-sister-18-dlc/)

### Russian
- **2024-02-10**: The Seventh Sign -Mr. Sister- - [Official website](https://jfydro.ru/the-seventh-sign-mr-sister/)

### Indonesian
- **2026-07-15**: The Seventh Sign -Mr. Sister- - [Official website](https://www.alyappy.my.id/2026/07/nekogami-sama-to-nanatsuboshi-imouto-no.html)

## Tags
ADV, School, Blood-related Brother/Sister Incest, Brother/Sister Romance, Male Protagonist, Single Ending, Bloody Scenes, Only a Single Heroine, Female Protagonist for a Short Time, Catgirl Heroine, Slice of Life, Flashback, Genre Shift, Kinetic Novel, Protagonist with a Face, Defloration, Side Portraits, Only Virgin Heroines, Death of Heroine, Twin Tail Heroine, Sixty-nine, Mind Control, Death of Protagonist, Resurrection, Half-Japanese Heroine, Memory Alteration, Betrayal, Ejaculation Choice, Outdoor Sex, Only Protagonist's Sisters as Heroine(s), Protagonist with a Sprite, Sex at School, Forbidden Love, Protagonist's Half-sister as a Heroine, Anal Sex, Protagonist's Younger Sister as a Heroine, Only Blood-related Heroines, Anal Fingering, Only Younger Heroines, Single Blowjob, Deepthroat, Single Handjob, Vaginal Fingering, Piss Drinking, Missionary Position, Standing Sex, French Kiss, Single Boobjob, Butterfly, Cunnilingus, Sex in Public Places, Quickie Fix Position, Sex with Protagonist Only, Vaginal Masturbation, Brocon Heroine, Heroine with Big Breasts, Pissing

## More Games from Sweet & Tea
- [Karenai Sekai to Owaru Hana](https://pinovel.net/v19658)
- [Kemono Musume no Sodatekata](https://pinovel.net/v23281)
- [Nekogami-sama to, Nanatsuboshi -Imouto no Ane-](https://pinovel.net/v24564)

---
*View the full details at [pinovel.net/v24564](https://pinovel.net/v24564).*

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