Apprehend;Girlfriend is a Yuri Visual Novel about two young women living together under the same roof. here is a simple guide on how to apply the official adult patch.
Tweet by Yume Creations: https://twitter.com/YumeCreations/status/1272894735271813131
Mirror #1: https://drive.google.com/file/d/1pGvNAqLid3DeAPEUo-cNXehRkQTBOw7Z/view?usp=sharing
Mirror #2: http://www.mediafire.com/file/36xx36t76ieop01/file
2) Move the file called “R18.rpa” to the folder “ApprehendGirlfriend/game” (ApprehendGirlfriend being the folder where the game is installed. Most likely C:\users\%username%\steam\steamapps\common\ApprehendGirlfriend)