Listen, I will write here assuming the developers read this forum.
The game is really good, but it can be improved a lot if you change some things on the story... You may think I'm just a random guy who does not support you with money, but hear me out please.
I don't think removing the incest is a big problem for this game, MC relationship with his mother and sister was already too strange before and I think making him a strange to the girls opens an even better oportunity for the plot, because now as they are not part of his family he can be much rougher with them demanding for services in exchange for his protection, but for that you must change the way both girls behave towards him.
The problem is both are very submissive since the start, they understand too fast the bad situation they are in and submit very fast, they need to resist more, and by resisting I don't mean only complaining in dialogue, but through actions.
At 1st they shouldn't bow to any of his demands, they should stand defiant and force MC to really show he is boss through his actions. Like, at first they should act as if it is his duty to bring them food, this way they do not bow to any of his demands, so he is forced to stop giving them food to make them compliant. I can even see an event with Kelly going out of the house to get food herself and almost getting raped by a demon, being saved by the MC.
and the addition of another lecherous and immature ''character'', as if MC wasn't bad enough.
I have to agree here, the shadow guy makes an already goofy MC look even goofier, it also breaks the flow of dialogues... On my personal opinion if you had made a MC which were more respectable with a real "dark" personality it would be better for the plot, but I understand that's how you made him be, however his shadow is very stupid and ads nothing... Too bad it seems you've wasted a lot of development time on it...
The game has potential, end of incest is not really a problem on my personal opinion, it may even be an opportunity to make the story better.
his editor must be from the 80s ... no search and replace in a whole project ... how pityful
I remember way back in the 80's MS-DOS text editor already had these tools... MS-Basic already had it then too if I quite remember my school days...