C18 Gu Family's Orthodox Tradition.

Guu Tianyi was nursing a serious headache. When had high-rank ferocious beasts become so commonplace? He was merely strolling along the outskirts of the Great Desolate Mountain when he had the misfortune of running into both a Rank Four and a Rank Five Ferocious Beast.

A Rank Five beast was on par with a High-Rank Martial Ancestor Expert, if not stronger