Contrary to popular belief, Shiromi and the others aren't actually dead. They're just floating in the sea of Chum-flavoured Tang waiting for the release of Samegelion 6.66: You Can (not) Jump the Shark.
The mistake often made is assuming there is a good side, when in reality everyone is the bad guy. Even that little girl deep down was trying to rob him.
I'm very sure this guy is out of his depth by A LOT with this prey, but maybe Same's weakness might just be a professional with a shark movie protagonist background.
It seemed like the demon king was going to have to fight alone because all his generals are dead (except Ghost Rider who was revived, the Tamer whose only thing dead is her pride and Davy Jones who never had a chance from the beginning).
but now it turns out that he has a squad of monster girls who at most will serve as bait for the shark