I still think august may have been the one behind mc mom being in porn
That is a possibility, still I doubt that. While August might have been one of the directors during Vicky´s porn career she worked with, I doubt that he was the one bringing her into porn. The MC´s Mom was desperate back then with few options.I think that , in any case the Carnation club is involved, so it is secondary importance who of the owners was the one that corrupted Mom or any of their own workers.
All of them is making the Devil's work (and I never say such a word casually).
That Kath is a sadist with a big S is correct. But as far as we currently know, Vicky´s porn career is more of a plot device than something getting into focus. What happened to her then, what she hated, what she liked about it, is more showing one of the main drives of the MC. He will do nearly anything to stop a repeat of the time when his Mom simply was so desperate that she earned money with making blue movies.I’m just saying that it’s possible that the mother of the main character may be still beholden to the whims of the pronation club and may have to engage in other future activities with her son witnessing them. After all Kathleen is a very vindictive and sadistic kind of individual.
It is a possibility for the darker endings that Kath will try to pull the MC´s Mom into it, but not because of the old porn stuff, but because Kath wants leverage against the MC then.
While it could be a bug, I think you witnessed something we see too rarely in many adult games here, choices which matter! You said that you do not follow the Mina route, so your MC is not interested in her. Storywise this means your trip to the Arcade with MIna happened, but with you two being just friends or aquaintances, nothing remarkable happened.I called Ian at the end of Up3 and mc told him about going to arcade with Mina though it didn't happen and I wasn't following Mina's route
The game plays differently depending what paths you take or not, which is great! For instance, during one of the exhibitions, you have the choice to help Kath more or visiting Hana in the Bar. You cannot do both and we can be sure the game remembers our choice and which routes we follow more or less.