Crowd Extermination
Arguably, the heroic act that Leo was engaging in right now, was saving the world rather than saving Aurora. However, since she was the one who would be sacrificed if no one had a fighting chance at the very, this was no different from saving her.
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Regardless, aside from glancing at the tower every minute or so, Leo put his whole focus into piercing and cutting. Just like proper cannon fodder, the monsters kept serving themselves to him.
Even if they couldn't hurt Leo, delaying him was more than enough for them!
'Just like obedient pets.'
If the animal-faced monsters in the initial challenges looked like wild animals with human bodies, the current horde was full of ferocious ones that had rabies.
Their fur was disheveled, its color was mostly dark, and their eyes were bloodshot as if they were injected with fifty doses of adrenaline. Unfortunately, they met two challengers that stood at the top of Earth's food chain.