Compared to humans, animals have always retained the characteristics of beasts, which is their ferocity.
Especially Tibetan Mastiffs, those mixed with hyenas are incredibly fierce, with the saying that one Tibetan Mastiff can counter ten regular hyenas.
Moreover, these appearing hyenas have all been injected with demon serum.
Ren Feng's expression was somber, the effect of this demon serum stimulating potential is extremely potent, turning these hyenas into crazed dogs, biting anyone they see!
The hyenas, with red eyes and sharp teeth exposed, had filthy and disheveled fur, drooling profusely.
"Woof!"
A hyena barked, and with a leap, it was the first to pounce at Ren Feng.
The other hyenas followed, their mouths wide open, lunging at Ren Feng.
Without a doubt, being bitten by these hyenas could cause rabies, if not death.
True Qi circulated, Ren Feng's right hand formed a fist, and he punched fiercely at the oncoming hyena.