I'm really serious this time, this is a harem game, Caribdis stated that this is the canon game, of course you will get disappointed if you want a solo path, the game doesn't work well that way, though Cari tried to fix it.
It's not how it was planned from the start, and if it's too much for you it's better to stop it before it's too late or else you will suffer trough it.
I don't know if it's worth it at this point considering the insane amount of content you will not see this way, I don't know man, Nancy is a Goddess, but so are all the other girls, for every other game maybe I could have chosen a single one of them but not for Eternum.