Aster Risks (MCU OC fanfic)

Fanfic where Regulus Aster plus a few others from Aster Chronicles are thrown into a dimensional portal and end up in The MCU.
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The last thing Regulus expected was to make an inter-dimensional jump, from what should've been a simple intelligence mission from an intergalactic base. But of course, when things CAN screw up, in the worst way possible, to inconvenience him, why the fuck WOULDN'T they?
The next thing he knew, he was waking up in a lab, in one of the most advanced cities he'd seen in a VERY long time indeed. Hunting down Blaiize, something that should've been simple turn to hell upon uninvited obstacles who seem to be just as powerhungy as megalomania can take you. Of course, it was his luck that he JUST so happened to attract the attention of... THE AVENGERS!
He soon realises that he's not the only one who made an inter-dimensional jump and has to put aside his personal preferences, if he wants to make it home, alive.
One team of (a LOT of) superheroes may just be what he needs.
S.H.I.E.L.D is apprehensive of the new guy who seems to have just appeared on Earth, almost like Thor's hammer. No way of return, no way of entering the atmosphere - they have every reason to be suspicious. And yet, when a bigger threat than some magic, anxiety-filled teenager in a cape surfaces on the planet, despite his intense dislike, Director Fury has no choice but to enlist the help of the young, talented individual.
If the kid of that temperament doesn't get himself killed first, that is...
The Avengers and all in their world would realise soon enough, that there's always more than meets the eye...

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Pls excuse the terrible summary. I wanna focus more on the actual content, rn. I might edit the Summary later.
SEE 1ST CHAPTER FOR WARNINGS