Rin Okumura Vs Shinra Kusakabe

Blue Exorcist vs Fire Force

The Son of the Devil

Vs

The Smiling Hero who looks like a Demon

Fight in a burning building.

Shinra wins by a speed blitz. He would kick Rin’s head off.

Actually, I underestimated Shinra’s kicking energy. It’s planet level so Rin would just become red mist from being kicked by Shinra.