I'd Let The World Burn [BSD x MHA Crossover]

The Yokohama borders have been opened, but as a trial run, the Hero Commission has decided to send in a few select students from Class 1-A and some pro heroes.

But before the trial run, one of the Hero Commission's researchers does something they didn't realize would lead them down a road they can't return from.
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About this AU;
-I just wanna say that some MHA characters will die, I will not say which ones, but some will die, just a forewarning.
-Certain characters from BSD are alive!
-Beast Mori AU!!!
-Dazai never abused Akutagawa when he trained him, but he was a stern and strict teacher.
-The Hunting Dogs only consist of Jouno, Teccho, and Teruko.
-There will be couples/ships from both BSD and MHA.