I make H-Game videos in my free time. And the program/game used in my Koikatu series is Koikatu.. (Koikatsu) which is why it's named that lol, that's the first comment in every video always asks what game or program I use XD.
All my videos use the H-Game Koikatu (Koikatsu, and Koikatsu Party are other names for the game) All characters in the game are stated to be 18 or older, and are entirely fictional.