1.-4. :sorta (fem-fem), yes but only in extra scenes (not part of game), no, sorta (technically it's swinging but actually not).
TBH, this game should have a netorare tag. They even made an NTR switch for Christ's sake.
Those extra scenes, or so-called side quests, are literally in the game. Didn't she do it of her own free will, behind MC's back? Plus, there is a blackmail scene in the main plot.
I haven't played it for a long while. Unless the devs changed it now?
Seriously, this forum is treating the word netorare quite disrespectfully, pissing off a lot of people. No wonder there are many arguments. Like a damn double standard.
It's a Japanese word, and on the Japanese side, like DLsite and so on, this kinda game will use 寝取られ tag. If it wants to go more specifically, they will use 寝取られ(寝取らせ) Netorare(Netorase). They don't just remove the netorare tag.
You do know that netorare doesn't require MC in a romance relationship, right? There are so many netorare manga/novel/galgame where the MC is not in romance (like just a childhood sweetheart/friend), while the FMC is fucking someone else.
You know, the more I think bouit the more hypocritical it is. Incetion literally has a 2nd brand called IncetionNTR. Why the hell did they make their so-called romance game have such a big controversy?