Odd that the game is split into 3 parts, but I suppose that's for size. Dev will get better with time and experience, so it's cool.
Part 2 was pretty good, I really like Yayoi being added, so it's not a typical NTR, and femboys are the best. Hope the dev plans on making the protag become a femboy sissy too.
The direction with the original girl is also interesting since she's basically been dumped for the mom. Looking forward to seeing what happens with her, whether it's good or bad.
Looking forward to part 3.