I don't remember the synopsis beyond just the title, but I do know the background image that is displayed at the top of the page on all games. The BF is in the middle and the GF on the left holding hands, while there's a ton of arms trying to hold the BF's right arm.
Edit: https://f95zone.to/threads/my-girlfriends-friends-v1-5b-kyle-mercury.66422/
Edit: https://f95zone.to/threads/my-girlfriends-friends-v1-5b-kyle-mercury.66422/