I Fell in Love With My Cool FWB but She Brought Her Big Breasted Sister Over
| App ID | 3938400 |
| App Type | Game |
| Developer | Hoi Hoi Hoi |
| Publisher | WaterBears423 |
| Supported Systems | Windows |
| Technologies | RPGMaker Engine |
| Last Changenumber | 31479470 |
| Last Record Update | 4 October 2025 – 11:37:19 UTC ( |
| Release Date | 2 October 2025 – 03:21:09 UTC ( |
Kosuke and Sana met at university, exchanged their first experiences, and became FWB. They started to live in a new apartment together. But Sana was not his only roommate; her busty sister, Aira, was also there. Whenever Kosuke and Sana had sex, Aira would always join in. It made Kosuke confused...
Additional Information
| Developer | Hoi Hoi Hoi | |||||||||||||||||||
| ReleaseState | released | |||||||||||||||||||
| Publisher | WaterBears423 | |||||||||||||||||||
| Store Release Date | 2 October 2025 – 03:21:09 UTC ( |
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| osarch | empty string | |||||||||||||||||||
| community_hub_visible | Yes | |||||||||||||||||||
| Social Media | https://x.com/hoi0609 |
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| Primary Genre | Adventure (25) | |||||||||||||||||||
| Store Genres | Adventure (25), Indie (23), RPG (3) | |||||||||||||||||||
| Store Asset Modification Time | 5 September 2025 – 04:04:27 UTC ( |
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| osextended | empty string | |||||||||||||||||||
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| Detected Technologies (?) | RPGMaker Engine, NWJS SDK, NodeJS SDK, Vorbis SDK | |||||||||||||||||||
| restricted_countries | CN,DE,SA China,  Germany,  Saudi Arabia |
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| Content Descriptors | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||||||
| controllertagwizard | Yes | |||||||||||||||||||
| First seen on SteamDB | 7 August 2025 – 01:59:35 UTC ( |
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| Content Descriptors (Including DLC) | Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5) | |||||||||||||||||||
Supported Languages
| 3 Languages | Interface | Full Audio | Subtitles |
|---|---|---|---|
| Traditional Chinese | Yes | Yes | |
| English | Yes | Yes | |
| Japanese | Yes | Yes |
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