Good Game so far, like it, and a Story-setup that is not used often around here.
But its a little weird to look at the charactres and think about their age. The MC has do be about 40 years old (so his sister), his mother must be 60, the daughters are 18-20. Yeah i get it, its a adult VN and supposed to get lewd scenes, and nobody wants to see fucking your granny mother or something like that ^^
But lets face it, the sister looks like 16, the mother like 25
its... just... weird
And everybody cares about the daughters like they are "little children". So i think... in the game it has been told that the daughters are 18-20, but my guess... they supposed to be children around 10-12 years old (looking like abou 14-16 years old in the game i would say). But they arent so young to avoid issues with the law, patreon and so on. Some other games go around this with the "option" to choose the age... but i get it, its a little "greyzone" so playing this game you have to try to forget about age-issues. And yeah i can do that... so no big deal, just something that was jumping into my face so to speak.
Nevermind, keep up the work, the writing is good, the renders are top, and as i said, the story is not so much used... kinda "original" around here. really like it so far. And yeah got a little emptional touched too. Not many games around here are capable of that.