What I apparently failed to explain is that not all of the girls will initially want to join a polycule. The two reasons currently being that they either highly dislike one of Null's girlfriends and the idea of joining in a relationship or sharing Null disgusts them and the other being that they're from one of the mentioned conservative communities that haven't fully accepted all the free love going on. You can convince both of them by being an ideal partner.
Ahhh of course, makes sense how you're gonna play it now.
I admittedly forgot about that... Pulling an in universe explanation out of my ass... It's a rich person's mansion that was converted into a school. If anything is fancy, just assume it was there to begin with because luxurious lifestyles lol
This ass-explanation is acceptable to me.
I'll confess, I might not fully know what a sliding timeline is...
The sliding timeline Marvel's way of dealing with the fact they've kept (more or less) the same continuity since 1961 without having to actually deal with the passage of real time.
Obviously, Marvel doesn't progress at the same rate as real life, otherwise almost every character would be 60+ years older by now. It's also pretty hard to follow real-time, or something which at least approximates it, when each issue in a series only comes out once a month.
The big problem nowadays in our glorious 21st century is that a lot of Marvel (particularly origin stories and backstories) was often based in real life events and trends from 'the world outside your window': e.g., mutants were originally the result of atom bomb tests, Professor X was a veteran of the Korean War, Reed Richards and Ben Grimm both fought in WWII, Tony Stark was injured in Vietnam, and so on. This was more or less still workable through the 1970s, but from the 80s onwards it became impossible to reconcile these backstories with the ages of the characters as they were then currently appearing.
So ever since, Marvel's solution to this is to pretend that, starting with
Fantastic Four #1, everything in the Marvel universe has happened within a timeframe of around about 13 years prior to the present day. The Fantastic Four's rocket flight is no longer a part of the Space Race, but instead will
always have happened a dozen years before now. Whenever they show flashbacks to origin stories or 'the past' visuals are updated accordingly, e.g., modern depictions of Spider-Man's origin will have the kids in his school walking round with mobile phones. The timeline "slides" along with the currently published comics. This lets Marvel keep the essentials of the stories intact and avoids having to deal with aging their characters. That last point is arguably a problem in itself, since it's partly why comics have been so stagnant for so long, but that's a different can of worms.
So, Vietnam has now been replaced by a vaguely timeless Indochina war, Soviet villains simply become Russian, and any outdated pop culture references to someone like Walter Cronkite or Edward G. Robinson are brushed aside. Of course for characters like Magneto and Captain America, whose backstories are indelibly tied to WWII, this becomes a little trickier. Though funnily enough Captain America is perhaps the only character who really benefits from the sliding timeline -- the further away he is from WWII, the more out of time he becomes. Back when they first resurrected him, the war had ended only 20 years previously. It actually works out even better (unless you're Cap).
If you want a better, more concise explanation and some proper examples, take a look at
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.
TL;DR (because I write too much): remember how
The Simpsons started out in the early 1990s with flashback episodes about how Homer and Marge first met in high school in 1974, and now they have flashback episodes about how Homer was actually a teenager in the 90s? This is that.