---
title: "Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~"
description: "The story centers around Sakagami Daichi, a salaryman at an insurance company, who has feelings for his childhood friend and first love, Matsuura Sakuya. Howeve"
image: "https://t.vndb.org/cv/90/130390.jpg"
---

# Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~

![Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~](https://t.vndb.org/cv/90/130390.jpg)

**Alternative Title:** 寝取られ三角関係 ～初恋の幼なじみがセフレにされた～

**Developer:** TRYSET Break / Position Co., Ltd.

**Release date:** Aug 28, 2020

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.2/10 (36 votes)

## Description
The story centers around Sakagami Daichi, a salaryman at an insurance company, who has feelings for his childhood friend and first love, Matsuura Sakuya. However, Sakuya doesn't reciprocate these feelings. Daichi often spends weekends drinking with his friend Hori Ryouma, a sports club instructor. One day, Daichi wakes up to discover that Sakuya and Ryouma are in a romantic relationship, leading to a twist in their close friendship.

## Characters
### Sakagami Daichi (坂上 大智)
- **Gender:** Male
- **Body:** Young-adult
- **Role:** Childhood Friend, Sex Friend, Office Worker

### Hori Ryouma (堀 涼真)
- **Gender:** Male
- **Role:** Childhood Friend, Sex Friend

### Matsuura Sakuya (松浦 朔夜)
- **Gender:** Female
- **Measurements:** Height: 159cm, Weight: 51kg, Bust-Waist-Hips: 94-61-89cm, H cup
- **Hair:** Blond, Short
- **Clothes:** Jacket, Nurse Uniform, Bunny Dress, Nightgown, Waitstaff Uniform
- **Role:** Childhood Friend, Not a Virgin, Sex Friend
- **Body:** Huge Breasts
- **Voiced by:** Konoe Yuzuko

## Shops
- [Official Website](http://www.ps-web.net/tryset_break/B011/01_top.html)
- [Steam](https://store.steampowered.com/app/1542430/)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01003764.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=1360886)

## Releases
### Japanese
- **2020-08-28**: Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~ Regular Edition - [Official website](http://www.ps-web.net/tryset_break/B011/01_top.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=29756), [Getchu](http://www.getchu.com/soft.phtml?id=1096125), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2162apc13611/)
- **2020-08-28**: Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~ Deluxe Edition - [Official website](http://www.ps-web.net/tryset_break/B011/01_top.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=29756), [Getchu](http://www.getchu.com/soft.phtml?id=1096124), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2162apc13611/)
- **2020-09-11**: Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~ DL Deluxe Edition - [Official website](http://www.ps-web.net/tryset_break/B011/01_top.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013724.html)
- **2020-09-11**: Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~ Expansion KIT Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ013748.html)
- **2021-03-12**: Netorare Sankaku Kankei - Download Edition - [Steam](https://store.steampowered.com/app/1542430/), [SteamDB](https://steamdb.info/app/1542430/info/)
- **2021-06-25**: TRYSET Break Selection 2021 - [Getchu](http://www.getchu.com/soft.phtml?id=1124311)
- **2021-06-25**: TRYSET Break Selection 2021 - DL Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ014558.html), [DMM](https://dlsoft.dmm.co.jp/detail/views_0708pack/)
- **2024-06-28**: TRYSET Break 5th Golden Pack Vol.2 - [Getchu](http://www.getchu.com/soft.phtml?id=1282756)
- **2024-10-11**: Soku Nuki Collection - Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~ - [Official website](http://www.ps-web.net/tryset_break/B011/01_top.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01002869.html)
- **2025-03-28**: Aikawa Arisa Teishoku - DL Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ01003764.html), [DMM](https://dlsoft.dmm.co.jp/detail/views_0903pack/)
- **2025-03-28**: Aikawa Arisa Teishoku - PK Edition - [Melonbooks.co.jp](https://www.melonbooks.co.jp/detail/detail.php?product_id=2717155), [DMM](https://www.dmm.co.jp/mono/pcgame/-/detail/=/cid=2162tryb0030/)
- **2026-04-24**: Aikawa Arisa Teishoku - Seifuku Collection - [Getchu](http://www.getchu.com/soft.phtml?id=1360886)

## Tags
ADV, Male Protagonist, Adult Protagonist, Multiple Endings, Late Branching Plot, Protagonist's Childhood Friend as a Heroine, Group Sex of One Female and Several Males, Netorare, Condoms, Sex in Public Places, Waitress Heroine, Missionary Position, Sixty-nine, Bukkake, Cunnilingus, Doggy Style, Female Ejaculation, Outdoor Sex, Few Choices, Naked Sprites, Cowgirl, Standing Sex, Spoons, Butterfly, Ahegao, Drunk Sex, Kissing Scene, Quickie Fix Position, Heroine in Relationship with Other(s), Only Adult Heroines, Double Penetration (Group Sex), Threesome, Heroine Having Sex with Others, Male Friend, Only Non-Virgin Heroines, Single Boobjob, Single Blowjob, Vaginal Masturbation, Anal Sex, Vaginal Fingering, Heroine with Huge Breasts, Only a Single Heroine, Nukige

## More Games from TRYSET Break / Position Co., Ltd.
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- [Chikan Densha 2 - Niizuma Otori Sousakan ~Nerawareta Ureta Nikutai~](https://pinovel.net/v26253)
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- [Chikan Densha 3 ~Haramase Fukushuu Otori Sousakan~](https://pinovel.net/v27384)
- [Kuro Bitch Gyaru ga Kimo Ota ni Ochiru Made ~Kankin Ryoujoku Haishin Nikki~](https://pinovel.net/v27830)
- [Nee-chan ga Ore no Omocha ni Nacchau made!?](https://pinovel.net/v28505)
- [Netorare Sankaku Kankei ~Hatsukoi no Osananajimi ga Sefure ni Sareta~](https://pinovel.net/v28684)
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- [Off Pako Choukyou Haishin ~Hameochi-hime wa Osu no Aji o Wasurenai~](https://pinovel.net/v33908)
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- [Mama Boku Dake o Aishite ~ Kimodebu Musuko o Dekiai Suru Haha no Yuganda Aijou](https://pinovel.net/v39979)
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- [Netorase Onsen Ryokou ~Kareshi no Hata de Deatta Bakari no Tanin bou ni iki Kurui~](https://pinovel.net/v63751)
- [Netorase Onsen Ryokou 2 ~Fukanshou Kyouiku Mama wa Yarite no Chounai Kaichou ni Shitai no Seikantai o Oshiekomareta~](https://pinovel.net/v66564)
- [Netorase Onsen Ryokou 3 ~Shikumareta Ryokou de Shujin no Douryou ni Mesu no Yorokobi o Shikomareta~](https://pinovel.net/v66565)
- [Saimin Chikan](https://pinovel.net/v68720)

---
*View the full details at [pinovel.net/v28684](https://pinovel.net/v28684).*

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