Room 8

After making every suitable demon corpse into one of his vessels, the number of vessels had increased considerably, with each one carrying the characteristics of a different demon species.

However, Asher still couldn't properly use most of their abilities. Simply possessing a demon's body didn't grant him complete mastery over its innate abilities.

All the demon vessels then moved toward the sections where the human corpses were stored.

Once they arrived, they began extracting the mana cores from the corpses and absorbing the mana within them. Their cultivation began increasing at a remarkable speed, and within a short period, their ranks started rising one after another.

However, the rapid increase in cultivation came with a price.