Title : Kotatsu de Imoto to Kakurete H, Having sex with my sister while hiding under the kotatsu
Original Title : こたつで妹と隠れてH
Language :English (FanTL by fantasmic)
Developer : Onchichin, おんちちん
Released date : 2026-06-21, 2027-07-04 (en)

Title: こたつで妹と隠れてH || Having Sex with Your Sister While Hiding under the Kotatsu
Dev: おんちちん (Onchichin) https://www.dlsite.com/maniax/circle/profile/=/maker_id/RG01004813.html
Store https://www.dlsite.com/maniax/work/=/product_id/RJ01648938.html
Release Date: 21 Jun 2026
Game Version: 1.0
List Price: ¥330
Engine: RPGM MZ
Translator: fantasmic @f95
Langauge: English (fan translation)
Playtime: 10 minutes


Overview: During a family gathering, the older brother suddenly starts to get aroused. He decides to have his sister relieve him "as usual" while his parents are distracted watching TV.
A mini-"stealth" game where you secretly have sex under the kotatsu while your parents are in the room.


Installation:
1. Get the game and extract it.
2. Put the patch archive in the game's main folder (where game.exe is), right-click, and "extract here". Overwrite when prompted.


Translator's Notes:
- It's short and straight-forward so there isn't much to say
- You can't manually save, but the game's so short you shouldn't need to. There's an auto-save and it'll always take you to the gallery after beating the game.
- Images in the gallery are untranslated since you really don't need my help to figure out that just says "handjob" etc.