I forgot who the developer was and what the story was but I'm pretty sure that is is a rpgm game where you play as a shota and your sister or whatever gets NTR'ed. I don't think it has been released but I could be wrong. I went back 20 pages in the NTR tab and I couldn't find it there.
Found it, just had to go back half a year in my search history
https://f95zone.to/threads/between-dream-and-reality-utsutsuno-rj322734-dh-files.83223/
https://f95zone.to/threads/between-dream-and-reality-utsutsuno-rj322734-dh-files.83223/