Was going through my backlog again, and I was playing the new update of
Demon Deals, and honestly I think it would be a good fit for this list. There's A LOT of girls besides the incest options (the usual suspects, Mom, Sister, Aunt, Cousin) but the incestuous relationships are surprisingly fleshed out, especially the mother. There's some
light mind stuff going on, but the main deal seems to be an actual relationship going on, the mc is even reluctant to use his mind-trick because he genuinely cares for his family. The dialogue and discussion between the mc and the girls is actually super romantic, even if everyone has a severe case of porn-bods. The new update even takes it a little further and it gets...weirdly real with how the mom and dad's relationship is falling apart and she feels an obligation to keep it going despite how miserable she is. Theres a lot to go through, but I think it's a real sleeper pick for this list.