---
title: "Sister Lesson"
description: "In the year 20XX, Japan enacted the so-called “Love Communication Act,” making “Love Communication Studies” (or “LoveCom Studies”) a mandatory subject in school"
image: "https://t.vndb.org/cv/08/41908.jpg"
---

# Sister Lesson

![Sister Lesson](https://t.vndb.org/cv/08/41908.jpg)

**Alternative Title:** シスターレッスン

**Aliases:** Sisless, Sisles

**Developer:** Marshmallow Soft

**Release date:** Jun 26, 2020

**Platform:** Windows, Android

**Language:** Japanese, English

**Rating:** 7.4/10 (83 votes)

## Description
In the year 20XX, Japan enacted the so-called “Love Communication Act,” making “Love Communication Studies” (or “LoveCom Studies”) a mandatory subject in schools across the country.

Around this time, the protagonist, Funaki Hiroya, returns to his hometown in Japan after spending years abroad. Living with him are his childhood friends—older sisters from the neighborhood he used to play with. Now grown into beautiful women, they’ve become teachers and senior students at the local academy.

Hiroya, however, has spent his time in Silicon Valley, working at a cutting-edge research facility surrounded by top-secret, high-tech gadgets. As a result, he’s grown into a socially awkward, tech-obsessed young man with zero interest in romance.

Worried, the sisters think:
If this keeps up, Hiroya’s going to spend his whole life surrounded by machines and die alone…! To prevent that, we’ll have to teach him the right way to love!

And so begins their daily “sisterly lessons” in love.

[Translated from [dlsite](https://www.dlsite.com/pro/work/=/product_id/VJ013700.html/)]

## Characters
### Funaki Hiroya (舟木 弘矢)
[I'm really bad at socializing! A complicated guy who doesn't eat at all]

The main character of this work.

He spent his childhood in Japan, but moved to Silicon Valley in the United States due to his parents' work. In Silicon Valley, he was known as a genius in AI programming, and instead of going to school he spent his time working in a specialized research lab. Perhaps because he has always been in contact with computers and machines, he has great difficulty socializing with others. He grew up not to show his emotions much and was somewhat argumentative and twisted.

Due to certain reasons, he returns to Japan for the first time in a long while and begins living with the older sisters of the Nonomiya family. Despite being a boy of marriageable age, he is a boy who has no interest in romance or sexual relations with the opposite sex, but when his "sisters" force themselves on him, he can't help but respond.

"I don't have any romantic feelings for anyone, and I don't need any." 

[Edited from [url=https://www.dlsite.com/pro/work/=/product_id/VJ013700.html]DLsite[/url]]

- **Gender:** Male
- **Measurements:** Height: 170cm
- **Birthday:** 22 February
- **Hair:** Brown, Short, Straight
- **Clothes:** School Uniform, Trousers, Suit, T-shirt, Bow Tie, Towel, Ribbon Tie, Sleeveless Sweater, Pocket Shirt
- **Personality:** Stoic, Genius
- **Role:** Husband, Father, Childhood Friend, High School Student, Researcher
- **Engages in:** Wedding, Marriage Proposal
- **Subject of:** Ear Cleaning
- **Body:** Toned

### Nonomiya Ayaka (野々宮 絢果)
- **Gender:** Female
- **Measurements:** Height: 159cm, Bust-Waist-Hips: 92-58-90cm, E cup
- **Birthday:** 1 December
- **Role:** Middle Sister
- **Body:** Huge Breasts
- **Voiced by:** Yatsuhashi Kinako

### Nonomiya Himari (野々宮 陽鞠)
- **Gender:** Female
- **Measurements:** Height: 177cm, Bust-Waist-Hips: 95-59-90cm, H cup
- **Birthday:** 29 November
- **Role:** Wife, Mother, Middle Sister
- **Subject of:** Pregnancy
- **Clothes:** Wedding Dress
- **Engages in:** Wedding
- **Body:** Huge Breasts
- **Voiced by:** Kanou Ichika

### Nonomiya Minori (野々宮 実里)
- **Gender:** Female
- **Measurements:** Height: 162cm, Bust-Waist-Hips: 98-60-92cm, I cup
- **Birthday:** 7 April
- **Hair:** Brown
- **Clothes:** School Uniform, Pajamas, Swimsuit, Naked Apron
- **Engages in:** Cooking
- **Personality:** Relaxed, Kind, Watashi
- **Role:** Senpai, Younger Sister, Twelfth Grader
- **Subject of:** Marriage Proposal
- **Body:** Huge Breasts
- **Voiced by:** Umemiya Koko

### Nonomiya Rinka (野々宮 凛華)
[The breadwinner of the family. A cool older sister who is strict but loving]

She is the eldest daughter of the Nonomiya family and the school nurse at the school [url=/c89378/]Hiroya[/url] attends. She also teaches the subject of sexuality between men and women in the "Love Community Studies" course. Due to her cool appearance and straightforward way of speaking, she is popular with students, and female students often come to her for advice about their troubles during lunch break. She scolds them properly when they do something wrong.

Although she thinks she is quite strict with Hiroya, she also has some lenient sides, such as buying him the latest model smartphone. Even though they are not related by blood, she regards them as "sister and brother," and she disciplines herself by never overstepping that line.

"Whatever a brother does is my responsibility as an older sister. It is my duty as an older sister to guide him."

[Edited from [url=https://www.dlsite.com/pro/work/=/product_id/VJ013700.html]DLsite[/url]]

- **Gender:** Female
- **Measurements:** Height: 160cm, Bust-Waist-Hips: 94-60-93cm, G cup
- **Hair:** Black, Ponytail, Long, Straight
- **Body:** Slim, Pale, Young-adult, Huge Breasts
- **Eyes:** Violet, Tsurime
- **Clothes:** Apron, T-shirt, Miniskirt, Knee-high Socks, Lab Coat, Bikini, Pendant Necklace, Panties, Tube Top, Baby-doll, Formal Shirt
- **Role:** Mother, School Nurse, Older Sister, Ane Act
- **Personality:** Honest
- **Voiced by:** Tsukimori Nene

### Nonomiya Sora (野々宮 空)
- **Gender:** Female
- **Measurements:** Height: 162cm, Bust-Waist-Hips: 96-60-92cm, H cup
- **Birthday:** 3 March
- **Role:** Wife, Mother, Middle Sister
- **Subject of:** Pregnancy
- **Clothes:** Wedding Dress
- **Engages in:** Wedding
- **Body:** Huge Breasts
- **Voiced by:** Yukimura Toa

### Momoko (モモ子)
- **Gender:** Female
- **Measurements:** Height: 148cm, Bust-Waist-Hips: 88-58-89cm, E cup
- **Birthday:** 31 October
- **Voiced by:** Fuurin Misuzu

### Ono Kenji (尾野 健二)
- **Gender:** Male
- **Measurements:** Height: 180cm
- **Birthday:** 23 August
- **Traits:** 

### Risuko (リス子)
Precise Height: 15.6 cm
Occupation: Care Animoroid (Nursing assistant robot shaped like an animal)
Hobbies: Counting Pi
Likes: Acorns
Dislikes: Water, rough treatment.

- **Gender:** Unknown
- **Aliases:** RX-788R, Lippy, リッピー
- **Measurements:** Height: 16cm
- **Eyes:** Brown, Round
- **Personality:** Friendly, Strange, Watashi
- **Role:** Nurse, Robot, Squirrel
- **Items:** Flower / Plant
- **Body:** Furry Tail, Non-Humanoid

### Yuki (ゆき)
- **Gender:** Female
- **Hair:** White, Bob Cut, Short, Straight, Intake
- **Engages in:** Shapeshifting
- **Body:** Tail, Kemonomimi, Fur, Four-Legged
- **Clothes:** Naked
- **Role:** Rabbit
- **Eyes:** Garnet

## Shops
- [Official Website](https://app.candysoft.jp/products/marsh/sisless)
- [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ013892.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1084177)

## Releases
### Japanese
- **2020-06-02**: Sister Lesson - Trial Edition - [Official website](https://app.candysoft.jp/products/marsh/sisless/download)
- **2020-06-26**: Sister Lesson - Package Edition - [Official website](https://app.candysoft.jp/products/marsh/sisless), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=29258), [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=639253), [Getchu](http://www.getchu.com/soft.phtml?id=1084177)
- **2020-07-22**: Sister Lesson - Download Edition - [Official website](https://app.candysoft.jp/products/marsh/sisless), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013700.html), [Gyutto](https://gyutto.com/i/item235804), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0205473/), [DL.Getchu](http://dl.getchu.com/i/item4029358), [DMM](https://dlsoft.dmm.co.jp/detail/inheart_0152/)
- **2020-10-23**: Sister Lesson Another Story - [Official website](https://app.candysoft.jp/products/marsh/sisless), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013895.html), [Gyutto](https://gyutto.com/i/item236985), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0208178/), [DL.Getchu](http://dl.getchu.com/i/item4030145), [DMM](https://dlsoft.dmm.co.jp/detail/inheart_0157/)
- **2020-10-23**: Sister Lesson Another Story - Android Edition - [Official website](https://app.candysoft.jp/products/marsh/sisless), [DLsite](https://www.dlsite.com/appx/work/=/product_id/VJ013892.html)

### English
- **2022**: Sister Lesson - [Official website](https://sugoivisualnovel.up.railway.app/vns/28016)

## Tags
ADV, Oneesan-type Heroine, Male Protagonist, Multiple Endings, Group Sex of One Male and Several Females, Homecoming, Harem Ending, Adult Heroine, Vibrators, Condoms, Defloration, Sex in Public Places, Only Virgin Heroines, Missionary Position, Sixty-nine, Twin Blowjob, Intercrural Sex, Naked Heroine with Apron, Erotic Spanking, Ejaculation Forewarner, Cunnilingus, More Than Seven Endings, Doggy Style, Female Ejaculation, Ear-Cleaning, Outdoor Sex, Naked Sprites, Cowgirl, Sex in Water, Standing Sex, Sitting Sex, Spoons, Piledriver, Ahegao, Bathroom Sex, Soapy Massage, Kissing Scene, Marriage Ending, Background Moans, Facesitting, Reverse Missionary, Quickie Fix Position, Adult Breast Sucking, Threesome, System Time Events, Sex on a Beach, Nursing Handjob, Children Ending, Pregnancy Good Ending, Single Boobjob, Single Footjob, Single Handjob, Single Blowjob, Pissing, Vaginal Fingering, High School Student Heroine, Sex with Protagonist Only, Heroine with Huge Breasts, Heroine with Big Breasts, Shimaidon, Nukige

## More Games from Marshmallow Soft
- [Love Commu](https://pinovel.net/v24538)
- [Ama Mama Holic](https://pinovel.net/v27014)
- [Sister Lesson](https://pinovel.net/v28016)

---
*View the full details at [pinovel.net/v28016](https://pinovel.net/v28016).*

```json
{"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v28016#game","name":"Sister Lesson","description":"In the year 20XX, Japan enacted the so-called “Love Communication Act,” making “Love Communication Studies” (or “LoveCom Studies”) a mandatory subject in school","url":"https://pinovel.net/v28016","image":"https://t.vndb.org/cv/08/41908.jpg","author":{"@type":"Organization","name":"Marshmallow Soft"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"7.4","bestRating":10,"worstRating":1,"ratingCount":83}}
```