And no, the general situation points towards lasting throuples on choices related to Mina and Ewin's relationship, Hana and Edwin's relationship, Hana and Mina relationship, and Mina bi-curiosity points (maybe also Hana anger points). I don't know where you got this "throuple only on corrupted path" idea from. I literally don't understand where it's coming from.
Hi again!
Sorry if my estimation offends your view of the main storylines.

I base my theory on several factors. One is that from early on in development we were told that one day the choice will come to select our special sweetheart, singular. You can be friends with the other LIs afterwards, but we have to choose one character for love.
Choices count in PC and have consequences. You cannot see everything in one playthrough. Just look at the current update. To get all the Lucy, Hana, Sophia and Allison options, you need to have made several crucial choices before to open up these options. And even if you have all the options for these 4 women available, you have to choose which way you follow. Choosing Lucy sets you on another path than if you chose time with Hana or going for Sophia. These are not absolute route changers, but they count towards certain ways. Going for Lucy and Allison hints at acceptance as the club currently is, for example.
The threesomes we had so far were nice, but also did infringe on romance options. e.g. having the Feli/Mina/Edwin threesome, you loose an important Felicia romance event and is not that good for the Mina romance either.
Characterisations: Unlike the majority of games on F95, the various characters in game are very well-developed. While there are some tropes, it is a porn game after all, the characters are made with care to detail. Who would guess on first try that Warren has a soft spot for movie classics?
The main and important side characters develop throughout the game too, influenced by our choices. The negative anger Hana (it is possible to lower it so far) is not quite the same as the high anger Hana, definitely not. But they all have their baseline character traits and values. Hana has nothing against sexual experimentation and fun, but it has been consistently told during the game that she also values loyalty and regular romance.
As I wrote in earlier posts, e.g. threesomes for fun with people you like, are not a problem for Hana. But a Mina "wanting more" Edwin or Hana would be a no-go for her. Unless both our hero and Hana are well corrupted by the club, I do not see a longterm throuple viable, because of the personalities invovled.
TD and GIL might, I say might, put in a throuple path as a very specifically convoluted reachable easter egg on a good path. But currently I do not see it, but it might happen.
I am far more interested in what happens between our hero and our eccentric chemist.
Sophia Turret Disease is not to be trifled with if Edwin is to continue being a man of culture, it’s a double headed virus that brainwashes men into becoming vanilla sex fiends who don’t even remove their pants.
Wait and see

Our hero and Sophia will give the world a new energy drink and viagra plus
