---
title: "Toshinosa Kyoudai to, Wasurerareta Yoru"
description: "In the near future, virtual reality (VR) has become widespread.  The protagonist is an ordinary office worker who enjoys adventures in one of those fantasy worl"
image: "https://t.vndb.org/cv/15/142215.jpg"
---

# Toshinosa Kyoudai to, Wasurerareta Yoru

![Toshinosa Kyoudai to, Wasurerareta Yoru](https://t.vndb.org/cv/15/142215.jpg)

**Alternative Title:** 歳の差兄妹と、忘れられた夜

**Developer:** Waffle

**Release date:** Dec 24, 2019

**Platform:** Windows

**Language:** Japanese, English

**Rating:** 5.3/10 (40 votes)

## Description
In the near future, virtual reality (VR) has become widespread.

The protagonist is an ordinary office worker who enjoys adventures in one of those fantasy worlds. He works at his company during the day and spends his evenings adventuring in the fantasy world.

He has a younger sister who is a student, and a pro gamer, they used to get play together and party when she was young. Recently, however, she became difficult to get along with......

One day, as Christmas approaches, he notices a light leaking from his sister's room.

She is in the middle of the Christmas event in the game and has been logging in for a long time lately.

The protagonist tries to warn her to go to bed early, but

He gets excited by the sight of his little sister wearing a VR headset and looking so defenceless. The protagonist, who loves his little sister, is so turned on by her that he ends up masturbating using her defenceless body as fuel......

## Characters
### Tsukinohara Ayumi (月野原 歩美)
- **Gender:** Female
- **Measurements:** Height: 145cm
- **Hair:** Pink, Violet, Antenna, Twin Tails, Ankle Length
- **Body:** Teen, Pale, Short
- **Eyes:** Blue
- **Clothes:** Thigh-high Boots, Thigh-high Stockings, Belt, Bell (accessory), Turtleneck Sweater, Ribbon Hair Tie, Strapless Leotard, Santa Suit, Fingerless Evening Gloves, Christmas Cap, Capelet, Fishnet Pantyhose
- **Role:** Gamer, Younger Sister
- **Voiced by:** Fujimiya Kiseki

## Shops
- [Official Website](http://www.waffle1999.com/campaign/waffle20th/title03.html)

## Releases
### Japanese
- **2019-12-24**: Toshinosa Kyoudai to, Wasurerareta Yoru - [Official website](http://www.waffle1999.com/campaign/waffle20th/title03.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=29144)

### English
- **2022-12-16**: A forgotten night together between a brother and sister far apart in age - [Official website](https://f95zone.to/threads/toshinosa-kyoudai-to-wasurerareta-yoru.141043/)

## Tags
ADV, Non-blood-related Brother/Sister Incest, Male Protagonist, Idol Heroine, Nukige, Protagonist's Non-blood-related Sister as a Heroine, Only a Single Heroine, Virtual Reality, The Holiday Season, Defloration, Only Virgin Heroines, Winter, Twin Tail Heroine, Erotic Spanking, Female Ejaculation, Siscon Protagonist, Cowgirl, Gamer Heroine, Only Protagonist's Sisters as Heroine(s), Ahegao, Background Moans, Protagonist's Younger Sister as a Heroine

## More Games from Waffle
- [Taisen Mahjong Yarujan](https://pinovel.net/v14283)
- [Tousatsu Mania Act 1 TV Kyoku](https://pinovel.net/v10386)
- [Message ~Todoke Kono Omoi~](https://pinovel.net/v10600)
- [Yobai Mania](https://pinovel.net/v5851)
- [Revolution](https://pinovel.net/v14701)
- [Happy Hotaru Sou](https://pinovel.net/v5326)
- [Aoki Daichi](https://pinovel.net/v11615)
- [~Ikusei Mahjong~ Mahjong Yuugi](https://pinovel.net/v3086)
- [Tokubetsu Settai ~Gokuraku Joudo e Youkoso~](https://pinovel.net/v4881)
- [Gakeppuchi Kakeibo](https://pinovel.net/v16859)
- [Rinjin](https://pinovel.net/v6798)
- [Yuuguu Settai ~Kotou no Gokuraku e Youkoso~](https://pinovel.net/v1105)
- [Suiei Kyoushitsu ~Fuyu de mo School Mizugi~](https://pinovel.net/v7388)
- [Yureru Bus Guide ~Oppai ga Ippai~](https://pinovel.net/v4142)
- [ELEVATOR PANIC ~Misshitsu no Inkou~](https://pinovel.net/v2294)
- [Subete Ubatte Yaru!](https://pinovel.net/v1229)
- [Toubousha - Dokujima Nero: Ritou no Ama Hen](https://pinovel.net/v8079)
- [Toubousha - Dokujima Nero: Yawahada no Naka ni Nemure Hen](https://pinovel.net/v4978)
- [Toubousha - Dokujima Nero: Kyousei Hassha, Torawareta Joukyaku Hen](https://pinovel.net/v8080)
- [Tokudoku Series - Toubousha Dokujima Nero ~Kago no Naka no Inbou Hen~](https://pinovel.net/v8081)
- [Nukenin ~Hokaku, Soshite Choukyou e~](https://pinovel.net/v2427)
- [Tokudoku Series - Toubousha Dokujima Nero ~Sunadokei no Maid Hen~](https://pinovel.net/v8078)
- [Kokyou no Uta](https://pinovel.net/v687)
- [Shirudaku Settai Shiru Darake no Machi](https://pinovel.net/v7480)
- [Maid to Majutsushi](https://pinovel.net/v10085)
- [Shirudaku Settai Okawari Ippaime ~Kako no Mitsu wa Donna Aji? Hen~](https://pinovel.net/v7242)
- [Shirudaku Settai Okawari Nihaime ~Inochi Mijikashi, Okaseyo Otome! Hen~](https://pinovel.net/v4774)
- [Mahou no Shoujo Silky Lip ~Sannin no Joou Kouho~](https://pinovel.net/v4988)
- [Inchiki Reibaishi](https://pinovel.net/v3120)
- [Yubisaki Annainin: Shirudaku Settai Okawari Sanbaime ~Inwaku, Seikan Kaihatsu Esute Hen~](https://pinovel.net/v5133)
- [Midarete Majiwaru Ore to Hime ~Hime to Shitsuji to Utahime to Sonota Oozei to~](https://pinovel.net/v2182)
- [Kyonyuu Fantasy](https://pinovel.net/v2762)
- [Migite ga Tomaranai Boku to, Osananajimi no Shimai](https://pinovel.net/v3404)
- [Hadaka no Ou-sama](https://pinovel.net/v3979)
- [Kyonyuu Majo](https://pinovel.net/v5073)
- [Kyonyuu Fantasy Gaiden](https://pinovel.net/v6355)
- [Migite ga Tomaranai Boku to, Shinjin Nurse](https://pinovel.net/v6631)
- [Maki-chan to Now.](https://pinovel.net/v7001)
- [Tsugou no Yoi Sexfriend?](https://pinovel.net/v7980)
- [Danchizuma to Now.](https://pinovel.net/v9647)
- [Kyonyuu Fantasy 2](https://pinovel.net/v10000)
- [Sukumizu Tabehoudai](https://pinovel.net/v11065)
- [Yabai! -Fukushuu Yami Site-](https://pinovel.net/v12130)
- [Denshanai de Now.](https://pinovel.net/v12708)
- [Yuganda Ren'ai Moyou](https://pinovel.net/v12765)
- [Kyonyuu Fantasy Gaiden 2](https://pinovel.net/v13083)
- [Gakuen de Jikan yo Tomare](https://pinovel.net/v14161)
- [Mankitsu Happening](https://pinovel.net/v14650)
- [Kyonyuu Fantasy 2 if](https://pinovel.net/v15605)
- [Kyonyuu Fantasy 2 - Digital Novel Edition](https://pinovel.net/v18686)
- [Zoku Maki-chan to Now.](https://pinovel.net/v16778)
- [In Vitro Shoujo -Yorisoishi Karen naru Juusha-](https://pinovel.net/v17005)
- [Kyonyuu Fantasy - Digital Novel Edition](https://pinovel.net/v18140)
- [Kyonyuu Fantasy 2 if - Digital Novel Edition](https://pinovel.net/v18687)
- [Kyonyuu Fantasy Gaiden - Digital Novel Edition](https://pinovel.net/v18688)
- [Kyonyuu Fantasy Gaiden 2 - Digital Novel Edition](https://pinovel.net/v18689)
- [In Vitro Shoujo -Habatakishi Torikago no Tenshi-](https://pinovel.net/v18110)
- [Kanzen Jikan Teishi ~Muriyari Jikan o Tomerareta Sekai de Hamerareru Onna-tachi~](https://pinovel.net/v17884)
- [Shimai to Now.](https://pinovel.net/v18008)
- [In Vitro Shoujo -Nokosareshi Rakuen no Himegimi-](https://pinovel.net/v18538)
- [Kyonyuu Fantasy 3](https://pinovel.net/v18337)
- [Maki-chan to Now. Kanketsuhen](https://pinovel.net/v18742)
- [In Vitro Shoujo -Aragaishi Junshin Naru Shoujo-](https://pinovel.net/v19008)
- [Onii-chan wa Watashi-tachi no Omocha](https://pinovel.net/v19009)
- [Koukan no Toriko-tachi...](https://pinovel.net/v19220)
- [Kyonyuu Fantasy Gaiden 2 After -Osutashia no Yabou-](https://pinovel.net/v19494)
- [Eden's Ritter - In'etsu no Seima Kishi Lucifer Hen](https://pinovel.net/v20357)
- [Rinjin ni Kowasareteiku Ore no Tsuma](https://pinovel.net/v20484)
- [Zen'aku](https://pinovel.net/v20672)
- [Eden's Ritter - Bangai Hen](https://pinovel.net/v22187)
- [Kyonyuu Fantasy 3 if](https://pinovel.net/v21528)
- [Kyonyuu Fantasy 3 - Digital Novel Edition](https://pinovel.net/v26490)
- [Ore o Hoshigaru Futari no Haha](https://pinovel.net/v22186)
- [Namaiki Dark Elf 3 Shimai ga Boku ni Nakadashi o Motomeru.](https://pinovel.net/v22439)
- [Kyonyuu Fantasy 3 if -Artemis no Ya - Medusa no Negai-](https://pinovel.net/v22581)
- [Shin'yuu ga Kizukanu Uchi ni Kanojo o Netoru Boku](https://pinovel.net/v22582)
- [Seiyoku ga Tomaranai Goshujin-sama to Sannin no Maid-tachi](https://pinovel.net/v23298)
- [Haha Sannin to Ana Asobi](https://pinovel.net/v24214)
- [Hentai Elf Shimai to Majime Orc](https://pinovel.net/v24215)
- [Hajimete no Kanojo](https://pinovel.net/v24648)
- [Eden's Ritter - Chapter 1 Gaiden - Innan no Miko-hime Cecily Hen](https://pinovel.net/v25555)
- [Eden's Ritter - Chapter 2 - Gokuetsu no Ryuukoujo Hildegard Hen](https://pinovel.net/v24582)
- [Ikani Shite Ore no Tsuma wa Haranda ka......](https://pinovel.net/v26205)
- [Ansatsusha Fantasy](https://pinovel.net/v28342)
- [Kyonyuu Fantasy Gaiden 2 After -Lute, Kodai Rome ni Iku-](https://pinovel.net/v28343)
- [Kyonyuu Majo - Ura no Hihou Hen](https://pinovel.net/v28344)
- [Yarinaoshi no Christmas](https://pinovel.net/v27658)
- [Akuma na Kanojo ~Inma na no ni Amayakasu Tanoshimi ni Hamatte, Toro Ama ni Shiboritorarechau Seiya de Seiya na Ohanashi~](https://pinovel.net/v27659)
- [Toshinosa Kyoudai to, Wasurerareta Yoru](https://pinovel.net/v27660)
- [Santa ga Irutte Shinjiteru?](https://pinovel.net/v27661)
- [Ore no Shiranu Ma ni Kanojo ga...](https://pinovel.net/v27781)
- [Eden's Ritter - Chapter 2 Gaiden - Rengoku no Maou Barberit Hen](https://pinovel.net/v28155)
- [Ore no Shiranu Ma ni Kanojo ga... Hanasaki Kagura Hen & Miyahara Maina Hen](https://pinovel.net/v28401)
- [Moto Yan Kyonyuu Nurse no Ama Ero Kango](https://pinovel.net/v28649)
- [Dasoku](https://pinovel.net/v29098)
- [Ore o Hoshigaru Tsuma to Gibo](https://pinovel.net/v29930)
- [Kyonyuu Fantasy 4 -Shuudoushi Astor-](https://pinovel.net/v27685)
- [Dorei Himekishi to Dorei Jijo to no Slow Life](https://pinovel.net/v30998)
- [Futanari Sennyuu Sousa Seika -Nikutai Kaizou Kyoushitsu, Kyousei Shasei Jugyou-](https://pinovel.net/v31830)
- [Saiin Salon ~Otto no Shiranu Aida ni Haramase Revenge Sareru Tsuma~](https://pinovel.net/v32239)

---
*View the full details at [pinovel.net/v27660](https://pinovel.net/v27660).*

```json
{"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v27660#game","name":"Toshinosa Kyoudai to, Wasurerareta Yoru","description":"In the near future, virtual reality (VR) has become widespread.  The protagonist is an ordinary office worker who enjoys adventures in one of those fantasy worl","url":"https://pinovel.net/v27660","image":"https://t.vndb.org/cv/15/142215.jpg","author":{"@type":"Organization","name":"Waffle"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"5.3","bestRating":10,"worstRating":1,"ratingCount":40}}
```