The .rar file contains textures that swap the default crewmate and impostor skins for anime girls.
Note: Mods usually only work on the PC version of the game and may require all players to have the mod installed to see the same sprites. Among-Waifus.rar
Because .rar files from unknown sources can occasionally harbor malware or "pop-up scams," it is highly recommended to run any mod file through a scanner like VirusTotal before extracting it to your computer. Among-Waifus.rar