This is more exhibitionism than ENF, but:
https://twitter.com/KaminokadoAkiraThis guy seems to be working on an exhibitionism themed RPG starring Yuzuki Yukari. It's in the extreme early stages, however, as when I downloaded all you could do was leave school, visit the park during the day (clothed), go home, strip, then go to the park naked in a loop. He seems to have made a couple of updates since then, but I don't know if there's been any scenes.
