Y
There are two alternatives:
1) The girls are your biological daughters in a society where incest is societally acceptable.
2) The girls are so-called "Children of Zeta" which means they are children of the temple prostitutes who are being placed in the homes of citizens to complete their upbringing.
Although I prefer the first, the second is actually innovative and fits well with the game's lore.
Ya 2nd option makes more sense, if not directly, to me it felt like it was implied MC's wife is yet to bear her first child
Even mathematically it makes less sense, if you see according to "GAME'S WORLD", let's say MC married his lady when she's 16 yrs.
But now MC literally left his first daughter (not his own blood) for her FIRST SOLO MISSION, quite dangerous in that kind of world. So assuming everything, she should at least be 18+ in that world to venture out for solo missions.
Now, MC's wife looks to be of age group of roughly 27 - 33, if MC had only one daughter age would have tallied.
But, MC has another younger daughter who should atleast be (after accessing her mental maturity level) 14+, but for safety reasons and rules of our actual world we can also think her actually to be of at least 18+.
So whether she's 14+(only strictly according to game world) or 18+(reality standards) nothing adds up mathematically to the age of MC's wife.
But given that they ARE all really blood related, then both MC and his wife are quite past 35, MC would probably be 40+ and his wife 36+(ages of other girls add up in this scenario), but picture wise MC appears to me to be less than 35 years old at least and his wife less than 32 years old (now ages of other girls don't add up if they're blood related).
But given that MC's wife has an elder sister who has a daughter who appears to be quite around 18 yrs of age, also that the age difference between MC's wife and her elder sister seemed to be around 2 - 4 years, it should be around 12 years of time that should have passed from the date of marriage of MC.
But then, is MC less fertile to have no more children than 2 or no children in other scenario?
Because having a wife like that and having a social standing of stalker (almost like an Earl), one would have more than 2 offspring in the marriage period of 12+ years.
But then, it's shown that MC would have impregnated the Priestess so the problem is not with the MC, may be the other partner with issues?
If you don't care much about specifics and each and every details, you won't be having questions, but when focusing on details, ages won't tally properly, when we're thinking it's incest and the 2 girls are MC's daughters.
Maybe with further releases everything's cleared up or maybe these things will remain foggy and choice based.
Whatever be the specifics, I like the game with it having to both enable and disable the choice of incest.
*A society, very open to sex, no issues with incest...* - yeah sounds nice, but for how long? Given every household is somehow doing incest (everyone is a degenerate) "secretly or openly" in each generation compulsively that society will start falling from 10th generation, as by that generation almost everyone would be blood related in the close knit city of this game, and it looks like it's more than 300 yrs past apocalyptic events and luckily not everyone is a incestuous bastard in the city even if some might be and they employ a unique approach to maintain the population of city.
That stretches credibility.
