Bab 218: Upgrading One's Race! Peak of Demon. (3)

Huff~

Manipulating the floating napkin within the atmosphere, lightly removing the forming sweat on his pale forehead that slightly hindered his concentration.

Leo couldn't help but let out a deep sigh of exhaustion, eyes constricted as he carefully manipulated the 10 drops of diluted blood within the withered corpse of the unknown devil in his grasp...

Feeling that some unknown rules, entity, or object was mysteriously hindering his progress, making him frown in vexation due to his slow progress.

Fortunately, he was already close to removing the blood within the body of the devil... Making him grit his teeth in determination as he could faintly feel his opportunity appear within his grasp.

An opportunity to upgrade his species above its current level! Making his overall ability to increase by at least 50% if that happened!

Keke~