This is one of the most strange games i have ever tried to play.
In the game you have the option to set your own relationship with the girls who live with the MC, but this option in the case of this game makes absolutely no sense and it seems to me that the dev added it just to attract incest fans to their game because we can set a relationship like father-daughter, but so what if we do that and the whole plot and dialogues make no sense and do not fit completely with the fact that they are in any way related and if we don't change the relationship between the MC and the girls then also the plot and dialogues are just stupid when they address each other as "friend" or "housemate".
The writing in this game in my opinion leaves a lot to be desired, because as I mentioned the whole idea of setting up a relationship for yourself is completely unthought out and makes no sense either in the case of implicit relationships or any other, no matter what relationship between the MC and the girls you choose.
Also, there is no relationship building here between the MC and the girls because as you can see they immediately want to jump on his dick and that makes me feel like I jumped right into the middle of the game because I missed how the relationship developed between them from the moment they met to the moment they want to have sex with each other and because of that for me personally the whole storyline is not very interesting because I am one of those people who plays games mainly for the story itself and the rest of the game, the graphics and the animations are always secondary for me.
Of course, the opinion presented above is only my personal and there are probably many people here for whom all that I mentioned does not matter much, especially people who play this type of game just for the quality of graphics and animation and for them this game is still a good product but if someone plays such games also for the story itself, then he may have a similar opinion to mine.
Of course I wish the dev good luck with his game even if this is not game for me.