great game. great pace. great story. great characters (both art and depth). the narrative is done so economically, and effectively, I appreciate the difficulty of that.
One word of advice, if I may. Don't write the story for anyone but yourself, write the debauched tale you want.
Ignore all the whinging and whining about incest, NTR, missing story tags ... and whatever else. Incessantly bleating lambs are irritating, but without them, wolves will starve.
Statistically, 30% of the audience here will love your work, 30% will hate your work, and the remaining 40% just wanna be entertained by a good lewd story. No matter what you produce, you will piss of 30% of the audience. Might as well piss off the bleating lambs. Seems like they keep coming back for more anyway, so what does it matter. Eh?