This world is never short of evil monsters, only lacking eyes that see people as monsters.
Jimmy feels that at this moment, he is a grave digger for monsters.
Putting aside his personal grudges and his own cowardice, he now only cares about one thing: whether Hela is a monster or not.
Actually, whether she's a monster or not isn't that important.
What he cares more about is whether Hela is a "Shape-shifter Beast."
A monster, no matter how well-hidden or skilled at disguising itself, is still a monster hiding within a crowd of people, essentially like a lion hiding among rabbits.
Even if the lion could wear rabbit fur and make a sound exactly like a rabbit, there are some things it can never disguise, such as the lion's much larger body than the rabbit.
No matter how much monsters pretend to be humans, they cannot completely stuff their entire body and limbs into the skin called "human."