You can't really lose, you get non standard game over, i think you don't even go to the reccolection room xD, but yeah maybe i need to peek, wich i don't like since it degrades any sense of real surprise on the MC later on, without peeking the ending was good since it really did come as a surprise to the MC, plus it really felt as a betrayal since he did trust them, i also only did the village elf secondary quest, won't do it this time to finish and see if i get something different, since i think the only other thing that makes a difference is how long it takes to recue Aisha and Erun from the frontier town.
Ok i am going to give my opinion based on the ending i got first: honestly storywise it beats NTRPG, i know most of you like dit best but for me it felt to much like a voyeur game, in this one when the MC discovers the affair at the end (based on my end that is) it did come as a surprise, plus his reaction is actually understable since to reach that point he didn't peek once, he did trust them and even better after the curse was lifted i didn't see any obvious sign she was still fucking the other guy, in other words the betrayal felt serious and real, i hate all thos egame when the MC spends half the time seeing her fuck but then at the end is all like "OMG how could you?!! i totally didn't see this coming even with all the cheating and casual sex!" here that is averted because there is a good reason for the sex and it aparently did stop when it wa suspposed to.
That is for the story, the game itself is a mess!! lots of bugs and simple errors, it still is good especially for a first time game but i hope the developpers learned a lot making it so their technical skills improved.