The main character, Ryo, invites his girlfriend, Miho, into his house and introduces her to his grandfather.
Grandpa gives them a drink but a moment later Ryo gradually loses consciousness and has a sickening dream of being cuckolded by his grandfather.
Some days later, Ryo invites Miho to his house again and Grandpa gives them another drink. A moment later Miho collapses from a fever and Ryo goes to buy medicine, leaving them alone.​

Last update: 2023-04-07
Released: 2022-10-09
Original Title: 彼女を爺ちゃんに紹介したら、寝取られていた件について
Aliases: When I introduced her to Grandpa, I was taken down
Creator (developer):
Censored: YES + Patch to uncensor
Version: 22.10.1
OS: Windows
Language: Japanese + English MTL (ReiPatcher)
Voices: Japanese
Store:
Genre:

3D Game, 3DCG, Animated, Japanese Game, Male Protagonist, Voiced, Cheating, Corruption, Creampie, Dilf, Internal view, Netorare, Oral Sex, Vaginal sex, Virgin.

Install instructions:

1. Extract and run.

Whats new (last changes):

2022-10-10: Fixed a bug in counting the number of days logged in.
2022-10-09: Initial release.

DOWNLOAD
The official game build (japanese) is not available here.
The following download is an unofficial build with english auto translator (MTL).
Win: – –
Uncensor patch: – –
To install the uncensor patch:

1. <game_root> is the folder that contains the game executable NTRGG3D.exe
2. Create a backup of the original file: <game_root>/NTRGG3D_Data/sharedassets0.assets
3. Unzip sharedassets0.zip to obtain the sharedassets0.assets patch file.
4. Copy the sharedassets0.assets patch file into <game_root>/NTRGG3D_Data/
5. Run the game.

The uncensor patch was created by following this guide:
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