Monsoon from Metal Gear Rising is known for stating that free will is a myth.
This game, I believe, is the perfect embodiment of the myth of free will since the only choice you have in this game that is perfectly within your control is whether you want to get knocked up. From the get-go, the game tells you that the premise is that she needs magic crystals to fix the seal containing the demon lord and pay the debt racked up by the stupid decision to get involved with shady adventurers.
However, money is certainly not needed apparently since it doesn't even matter if you obtain the 10k gold, cheats or otherwise, the game won't end until you finish dungeon crawling. Already, the choice to get out and go your own way is taken from you. There's also some railroading at work since events simply happen to you as the days pass by, including to other women such as your daughter.
Now, I personally don't mind if a game has NTR or cheating but what I do mind if I have no agency in the matter at all. The only time you even have 'choices' is when you're given the option to increase or decrease fertility, give birth, and whom to fuck when you're not adventuring. I stick to the shota because he's the only one with any semblance of consent involved and that the MC is weirdly okay with it under the contrived notion of familiarity.
The dungeon crawling is what I'd give kudos for breaking the norm and having it be reminiscent of dungeon crawlers of yore. What I find to be absolutely annoying, however, are the arbitrary stopgaps and events that prevent you from blitzing through the dungeon floors, forcing you to retrace your steps the next day just to proceed to the next floor.
All in all, I'd probably enjoy this game a lot more if there was more player agency but it's otherwise a meh RPG and an okay eroge.