Xu Yi continuously hunted the 7th-level peak Fierce Beasts, accumulating hundreds of Brain Crystals in no time.
Xu Yi didn't know how much energy the Star Gate required.
Moreover, he was currently the only one able to acquire 7th-level Fierce Beast Brain Crystals.
If the territory of the 8th-level Fierce Beasts were large, hunting them would become very troublesome.
However, the number of 7th-level peak Fierce Beasts was many, especially in the boundary areas, their numbers were even higher.
So hunting 7th-level peak Fierce Beasts here was the most ideal and least labor-intensive.
Xu Yi only stopped when his Spiritual Power was nearly exhausted, then began to recover his Spiritual Power.
He planned to keep hunting like this until he encountered the first 8th-level Fierce Beast.
