>>280195472
>I have no idea how a straight adaptation would work
Well, first we add Iaian in there, of course, who heroically protects the civilians while Amai is busy seething over Saitama, then we add Do-S, who is controlling the clown. Iaian jobs, naturally, and then Amai begrudgingly starts fighting himself, and eventually loses to the clown. While knocked out, he then involuntarily transforms into his monster form by the hands of Do-S, goes on a rampage, and eventually defeats the clown and Do-S (who survives because she's pretty) after Blast appears and tells him to be his own ideal hero. Saitama then appears, kills the clown's eviler dad in one punch, and drags Amai off. Then at the end, we see McCoy talking to a mysteriously silhouetted figure about how he engineered all of it and how the Hero Association is sure to collapse because of the scandal, while Sekingar secretly listens in.
That's as straight as Murata can make it, I reckon.