Hello, hoping someone can help me remember the name of a certain manga.

The premise is a guy acquires a camera that when you take a picture of a person the image can then be used to turn another person into the person in the picture. Guy with camera likes "Girl A". "Girl B" (coworker) finds out about the camera and has Guy take picture of "Girl A". Then "Girl B" uses picture to turn into "Girl A" and has sex with Guy.

In a later chapter I vaguely remember "Girl B" (coworker) starts to go a little crazy since she has fallen in love with Guy.

Also I'm not sure if it's the same story but I think the camera/picture also shows a number with how compatible the person in the picture is to the person taking the picture.

Edit: Figured it out. Wasn't a H-manga after all. I don't know how to delete a forum post though, so yeah.