---
title: "Sister Sister ~Koi no Heartful Panic~"
description: "Main character lives with his brother and girl Futaba brought by his father. They grow up as a happy family together. But everything changes when Futaba receive"
image: "https://t.vndb.org/cv/55/16955.jpg"
---

# Sister Sister ~Koi no Heartful Panic~

![Sister Sister ~Koi no Heartful Panic~](https://t.vndb.org/cv/55/16955.jpg)

**Alternative Title:** シスターシスター ～恋のハートフルパニック～

**Developer:** Troy

**Release date:** Sep 24, 2004

**Platform:** Windows, DVD

**Language:** Japanese

**Rating:** 5.9/10 (5 votes)

## Description
Main character lives with his brother and girl Futaba brought by his father. They grow up as a happy family together. But everything changes when Futaba receives an unsigned love letter containing only "I love you" line. At the same time new transfer student also appears to be their distant relative and thus also an older sister. Brothers decide each to choose his sister, but the decision won't come without a conflict.

[From [vndbreview](https://vndbreview.blogspot.com/2019/08/vn-of-month-september-2004-abandoner.html)]

## Characters
### Narusue Kazui (成末 一已)
3rd year.

- **Gender:** Male
- **Hair:** Brown, Short
- **Eyes:** Brown
- **Clothes:** School Uniform, Glasses
- **Role:** Older Brother

### Narusue Sakura (成末 三蔵)
1st year.

- **Gender:** Male
- **Hair:** Black, Short
- **Eyes:** Brown
- **Clothes:** School Uniform
- **Role:** Younger Brother

### Kasuminokouji Sana (霞之小路　沙奈)
- **Gender:** Female
- **Hair:** Ponytail, Long, Grey
- **Body:** Teen, Slim, Pale, Small Breasts
- **Clothes:** School Uniform, Hair Ribbon, Skirt
- **Role:** Student
- **Eyes:** Amber, Tareme
- **Voiced by:** Samoto Fuuri

### Mori Yuu (森 遊)
- **Gender:** Female
- **Hair:** Red, Short
- **Body:** Teen, Slim, Pale, Medium Breasts
- **Clothes:** School Uniform, Dress, Evening Gloves, Skirt, Shimapan
- **Role:** Student
- **Eyes:** Red, Jitome
- **Voiced by:** Isshiki Hikaru

### Nadekawa Megu (撫川　芽玖)
- **Gender:** Female
- **Hair:** Pink, Odango, Twin Tails, Sidehair, Hair Loopies
- **Body:** Teen, Slim, Pale, Fang, Flat Chest
- **Clothes:** School Uniform, Skirt, Thigh-high Stockings, Maid's Dress, Maid's Headdress, Bun Covers
- **Role:** Student
- **Eyes:** Green
- **Voiced by:** Fumizuki Kana

### Narusue Futaba (成末　双葉)
- **Gender:** Female
- **Hair:** Twin Tails, Waist Length+, Wavy, Orange
- **Eyes:** Brown, Tareme
- **Body:** Teen, Slim, Pale, Young-adult, Medium Breasts
- **Clothes:** School Uniform, Hair Ribbon, Skirt, Knee-high Socks, Bikini
- **Engages in:** Cooking
- **Role:** Mother, Non-blood-related Sister
- **Voiced by:** Nakase Hina

### Narusue Neiro (成末　音色)
- **Gender:** Female
- **Hair:** Violet, Twin Tails, Parted in Middle
- **Body:** Teen, Slim, Pale, Fang, Flat Chest
- **Clothes:** School Uniform, Apron, Hair Ribbon, Kemonomimi Headband, Skirt, Old Type School Swimsuit
- **Role:** Student, Non-blood-related Sister
- **Eyes:** Blue, Tareme
- **Subject of:** Piggyback Ride
- **Voiced by:** Kusunoki Suzune

## Shops
- [Official Website](http://www.n43project.com/n43/npg55/outline.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=68941)

## Releases
### Japanese
- **2004-09-24**: Sister Sister ~Koi no Heartful Panic~ First Press Edition - [Official website](https://web.archive.org/web/20050906090313fw_/http://www.bears-soft.com:80/game/soft.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=3937), [Getchu](http://www.getchu.com/soft.phtml?id=68941)
- **2008-02-28**: Sister Sister ~Koi no Heartful Panic~ DVDPG - [Official website](http://www.n43project.com/n43/npg55/outline.html), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=1018npg55/)

## Tags
Non-blood-related Brother/Sister Incest, Loli Heroine, Group Sex of One Male and Several Females, Under the Same Roof, Protagonist Selection, Defloration, Only Virgin Heroines, Twin Tail Heroine, Sixty-nine, Naizuri, Anal Sex

## More Games from Troy
- [Reverse Desire ~Uragaeru Yokubou~](https://pinovel.net/v4174)
- [Sister Sister ~Koi no Heartful Panic~](https://pinovel.net/v4847)
- [Gakuen Kaiketsu Kururi!](https://pinovel.net/v4187)

---
*View the full details at [pinovel.net/v4847](https://pinovel.net/v4847).*

```json
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```