---
title: "Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto"
description: "“As long as we’re together, it’s just like heaven to me.”  Tucked away in a quiet corner of the world, in a peaceful countryside far from the bustle of the city"
image: "https://t.vndb.org/cv/90/109990.jpg"
---

# Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto

![Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto](https://t.vndb.org/cv/90/109990.jpg)

**Alternative Title:** エッチで一途なド田舎兄さまと、古式ゆかしい病弱妹

**Aliases:** Country Siblings, 田舍兄妹

**Developer:** Sister Position

**Release date:** Apr 1, 2025

**Platform:** Windows

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

**Rating:** 8.0/10 (667 votes)

## Description
“As long as we’re together, it’s just like heaven to me.”

Tucked away in a quiet corner of the world, in a peaceful countryside far from the bustle of the city, a brother and sister share gentle, unhurried days.

Delicate in health, the sister has come to the rural estate to recuperate.

Her brother stays by her side, weaving tender moments into the fabric of summer.

Gathering dew at dawn, cloud-watching on lazy afternoons, walking home hand in hand at dusk, and whispering secrets under the stars—

Even the smallest fragments of time sparkle when shared with someone precious.

This is a delicate tale of companionship and care, of protection and dreams.

As time flows slowly through this pastoral setting, witness a quiet yet unwavering love quietly bloom.

[From [Steam](https://store.steampowered.com/app/3682050/)]

## Characters
### Mirai Asumi (妹来 あすみ)
Protagonist's sickly sister

- **Gender:** Female
- **Measurements:** Height: 150cm
- **Birthday:** 9 September
- **Hair:** Black, Ponytail, Long, Straight
- **Body:** Teen, Small Breasts
- **Eyes:** Blue, Tareme
- **Clothes:** Apron, Sun Hat, Sailor School Uniform
- **Items:** Knife, Ruler, Broom
- **Personality:** Deredere, Brother Complex
- **Engages in:** Planning, Teasing, Vaginal Egg Laying
- **Role:** Full Sister, Younger Sister, Eighth Grader
- **Subject of:** Illness, Piggyback Ride
- **Voiced by:** Amachi Haru

### Ane (阿姉)
Primary care physician of Asumi.

Describes herself as a voluptuous woman in her thirties.

- **Gender:** Female
- **Aliases:** せんせい, Sensei
- **Hair:** Brown, Short
- **Eyes:** Amber
- **Body:** Kid, Younger Appearance
- **Role:** Medical Doctor, Pet Owner
- **Clothes:** Lab Coat, Oversized Clothing
- **Engages in:** Not Sexually Involved
- **Personality:** Atashi
- **Voiced by:** Koto Kotori

## Shops
- [Official Website](https://sponsr.ru/checkout?project=kuroneko&lid=30180&type=subscribe)
- [Steam](https://store.steampowered.com/app/3682050/)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)

## Releases
### English
- **2025-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - trial version - [Official website](https://ci-en.dlsite.com/creator/922/article/1371042)
- **2025-04-01**: A Sex-obsessed Older Brother in the Country, and his Traditional, Sickly Little Sister - [DLsite](https://www.dlsite.com/maniax-touch/work/=/product_id/RJ01326883.html)
- **2025-05-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.01 Asumi-chan no Sailor Fuku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=38602), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01380046.html)
- **2025-06-20**: Doinaka Kyoudai - Censored Edition - [Official website](https://store.hikarifield.co.jp/shop/sickly_days), [Steam](https://store.steampowered.com/app/3682050/), [SteamDB](https://steamdb.info/app/3682050/info/)
- **2025-06-20**: Doinaka Kyoudai - Additional Content Patch for the Overseas Version - [Official website](https://appendingpulse.jp/dl/dok7cefc0mv7), [JAST USA](https://jastusa.com/games/hifi002_dlc/sickly-days-and-summer-traces-steam-patch-dlc)
- **2025-06-20**: Doinaka Kyoudai - [JAST USA](https://jastusa.com/games/hifi002/sickly-days-and-summer-traces)
- **2025-10-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.02 Asumi-chan to Katei no Igaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39560), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01469695.html)
- **2025-12-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.03 Asumi-chan to Seiso na Yuuwaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39754), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01501248.html)
- **2026-01-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.04 Asumi-chan no Kenzen Yuuryou Seikatsu - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40004), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01523923.html)
- **2026-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.05 Asumi-chan no Seichou Monogatari - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40363), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01570284.html)
- **2026-07-01**: Doinaka Kyoudai - Complete Set - [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)

### Japanese
- **2025-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - trial version - [Official website](https://ci-en.dlsite.com/creator/922/article/1371042)
- **2025-04-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=37849), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01326398.html)
- **2025-05-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.01 Asumi-chan no Sailor Fuku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=38602), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01380046.html)
- **2025-06-20**: Doinaka Kyoudai - Censored Edition - [Official website](https://store.hikarifield.co.jp/shop/sickly_days), [Steam](https://store.steampowered.com/app/3682050/), [SteamDB](https://steamdb.info/app/3682050/info/)
- **2025-06-20**: Doinaka Kyoudai - Additional Content Patch for the Overseas Version - [Official website](https://appendingpulse.jp/dl/dok7cefc0mv7), [JAST USA](https://jastusa.com/games/hifi002_dlc/sickly-days-and-summer-traces-steam-patch-dlc)
- **2025-06-20**: Doinaka Kyoudai - [JAST USA](https://jastusa.com/games/hifi002/sickly-days-and-summer-traces)
- **2025-10-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.02 Asumi-chan to Katei no Igaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39560), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01469695.html)
- **2025-12-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.03 Asumi-chan to Seiso na Yuuwaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39754), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01501248.html)
- **2026-01-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.04 Asumi-chan no Kenzen Yuuryou Seikatsu - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40004), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01523923.html)
- **2026-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.05 Asumi-chan no Seichou Monogatari - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40363), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01570284.html)
- **2026-06-15**: Ecchi de Ichizu na Doinaka Nii-sama to - Append Complete Set - [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_763930/)
- **2026-07-01**: Doinaka Kyoudai - Complete Set - [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)
- **TBA**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - Decensor Patch - [Official website](https://sponsr.ru/checkout?project=kuroneko&lid=30180&type=subscribe)

### Korean
- **2025-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - trial version - [Official website](https://ci-en.dlsite.com/creator/922/article/1371042)
- **2025-04-01**: Eumhyunghago Hangyeolgat-eun Kkangchon Olabeoniwa, Yeseuleobgo Byeong-yaghan Yeodongsaeng - [DLsite](https://www.dlsite.com/maniax-touch/work/=/product_id/RJ01326857.html)
- **2025-05-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.01 Asumi-chan no Sailor Fuku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=38602), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01380046.html)
- **2025-06-20**: Doinaka Kyoudai - Censored Edition - [Official website](https://store.hikarifield.co.jp/shop/sickly_days), [Steam](https://store.steampowered.com/app/3682050/), [SteamDB](https://steamdb.info/app/3682050/info/)
- **2025-06-20**: Doinaka Kyoudai - Additional Content Patch for the Overseas Version - [Official website](https://appendingpulse.jp/dl/dok7cefc0mv7), [JAST USA](https://jastusa.com/games/hifi002_dlc/sickly-days-and-summer-traces-steam-patch-dlc)
- **2025-06-20**: Doinaka Kyoudai - [JAST USA](https://jastusa.com/games/hifi002/sickly-days-and-summer-traces)
- **2025-10-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.02 Asumi-chan to Katei no Igaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39560), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01469695.html)
- **2025-12-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.03 Asumi-chan to Seiso na Yuuwaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39754), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01501248.html)
- **2026-01-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.04 Asumi-chan no Kenzen Yuuryou Seikatsu - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40004), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01523923.html)
- **2026-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.05 Asumi-chan no Seichou Monogatari - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40363), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01570284.html)
- **2026-07-01**: Doinaka Kyoudai - Complete Set - [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)

### Chinese (simplified)
- **2025-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - trial version - [Official website](https://ci-en.dlsite.com/creator/922/article/1371042)
- **2025-04-01**: Chiqing Gege yu Bingruo Meimei de Xiangjian Shenghuo - [DLsite](https://www.dlsite.com/maniax-touch/work/=/product_id/RJ01326567.html)
- **2025-05-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.01 Asumi-chan no Sailor Fuku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=38602), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01380046.html)
- **2025-06-20**: Doinaka Kyoudai - Censored Edition - [Official website](https://store.hikarifield.co.jp/shop/sickly_days), [Steam](https://store.steampowered.com/app/3682050/), [SteamDB](https://steamdb.info/app/3682050/info/)
- **2025-06-20**: Doinaka Kyoudai - Additional Content Patch for the Overseas Version - [Official website](https://appendingpulse.jp/dl/dok7cefc0mv7), [JAST USA](https://jastusa.com/games/hifi002_dlc/sickly-days-and-summer-traces-steam-patch-dlc)
- **2025-06-20**: Doinaka Kyoudai - [JAST USA](https://jastusa.com/games/hifi002/sickly-days-and-summer-traces)
- **2025-10-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.02 Asumi-chan to Katei no Igaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39560), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01469695.html)
- **2025-12-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.03 Asumi-chan to Seiso na Yuuwaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39754), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01501248.html)
- **2026-01-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.04 Asumi-chan no Kenzen Yuuryou Seikatsu - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40004), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01523923.html)
- **2026-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.05 Asumi-chan no Seichou Monogatari - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40363), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01570284.html)
- **2026-07-01**: Doinaka Kyoudai - Complete Set - [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)

### Chinese (traditional)
- **2025-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto - trial version - [Official website](https://ci-en.dlsite.com/creator/922/article/1371042)
- **2025-04-01**: Chiqing Gege yu Bingruo Meimei de Xiangjian Shenghuo - [DLsite](https://www.dlsite.com/maniax-touch/work/=/product_id/RJ01326636.html)
- **2025-05-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.01 Asumi-chan no Sailor Fuku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=38602), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01380046.html)
- **2025-06-20**: Doinaka Kyoudai - Censored Edition - [Official website](https://store.hikarifield.co.jp/shop/sickly_days), [Steam](https://store.steampowered.com/app/3682050/), [SteamDB](https://steamdb.info/app/3682050/info/)
- **2025-06-20**: Doinaka Kyoudai - Additional Content Patch for the Overseas Version - [Official website](https://appendingpulse.jp/dl/dok7cefc0mv7), [JAST USA](https://jastusa.com/games/hifi002_dlc/sickly-days-and-summer-traces-steam-patch-dlc)
- **2025-06-20**: Doinaka Kyoudai - [JAST USA](https://jastusa.com/games/hifi002/sickly-days-and-summer-traces)
- **2025-10-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.02 Asumi-chan to Katei no Igaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39560), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01469695.html)
- **2025-12-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.03 Asumi-chan to Seiso na Yuuwaku - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=39754), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01501248.html)
- **2026-01-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.04 Asumi-chan no Kenzen Yuuryou Seikatsu - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40004), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01523923.html)
- **2026-03-01**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto Append.05 Asumi-chan no Seichou Monogatari - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=40363), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01570284.html)
- **2026-07-01**: Doinaka Kyoudai - Complete Set - [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ01626120.html)

### Indonesian
- **2025-09-22**: Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto

## Tags
Blood-related Brother/Sister Incest, Defloration, Only Protagonist's Sisters as Heroine(s), Siscon Protagonist, Cowgirl, Sex with Protagonist Only, Rope Bondage, Single Blowjob, ADV, Outdoor Sex, Cunnilingus, High Sexual Content, Brocon Heroine, Brother/Sister Romance, Music Recollection, Pissing, Bathroom Sex, Standing Sex, Anal Toys, Orphan Heroine, Orphan Protagonist, Protagonist's Full Sister as a Heroine, Protagonist's Younger Sister as a Heroine, Nameable Protagonist, Achievements, Deredere Heroine, Sickly Heroine, Under the Same Roof, Fictional Modern Day Japanese Countryside, Character Movement, Only Blood-related Heroines, Lots of Choices, Single Handjob, Multiple Endings, One True End, Male Protagonist, Changeable Font, Only a Single Heroine, Love Overcomes All, Raising Simulation, Side Portraits, Boobs on Glass, Female Ejaculation, Vibrators, Pillow Talk, Naked Sprites, Adult Protagonist, BDSM, RPG, May-December Romance, Perverted Heroine, Only Virgin Heroines, Incest Romance, Middle School Student Heroine, Game Over, Only Younger Heroines, Bukkake, Heroine with Small Breasts (Non-Loli), Forbidden Love, Nukige

## More Games from Sister Position
- [Gaman ga Dekinai Doutei Aniki to, Sunao ni Narenai Hankou Imouto](https://pinovel.net/v30458)
- [Ecchi de Ichizu na Doinaka Nii-sama to, Koshikiyukashii Byoujaku Imouto](https://pinovel.net/v48724)

---
*View the full details at [pinovel.net/v48724](https://pinovel.net/v48724).*

```json
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```