So What If I Fell From The Sky? (HxH x MHA/BNHA)

Killua was running. He was running towards the energy, and there was a circle of glowing light, and-

"What the hell-?!"

Killua has been transported into a world of 'quirks' and weird people called 'heroes'. And once he's figured that out, it's a long way to go to get back home.

In order to find someone with a 'dimension quirk', Killua gets roped into attending UA, with a bunch of annoying teens. Killua is not really sure he can trust any of these people, but if he's going to get back...

Why is everyone in this world so weak? When will he see Gon and Alluka again? Who brought him here? And more importantly, why?

(And while Killua is busy with problems of his own, a new enemy is rising. A massacre is on the horizon - and none of them are ready.)

Assassin turned Hunter turned Hero...
This should be interesting.

(Disclaimer: I do not own Hunter x Hunter or My Hero Academia/Boku No Hero Academia)