Still, Carlos Was 'Easy to Bully'

"Pretty easy, right? Don't worry, I avoided vital areas like the heart. If everything goes smoothly, you might gain even greater power."

Su Xiao gripped the hilt of his sword. A mark on his upper arm flashed with a blood-red glow. It was one of Su Xiao's passive skills, Demon Mark. Originally, Demon Mark had been on the back of his hand, but because it was too conspicuous, he had moved it to his upper arm.

Demon Mark: Lv.7 (Passive Skill)

Skill Effect 1: Adds 28 points of true damage to melee attacks.

Skill Effect 2: The level of Demon Mark can be raised by sacrificing equipment. You have reached a pact with a High Demon.

Su Xiao rarely sacrificed equipment to Demon Mark because the skill consumed too many resources. Some low-quality equipment was not even enough to fill the gaps between its teeth. After all, it increased true damage, and without investing a large amount of resources, it could not be improved much.

However, Su Xiao's core abilities consumed too many resources, leaving him with nothing to spare for developing Demon Mark.

Earlier, when Su Xiao sensed Demon Power in that tube of blood, Demon Mark had reacted faintly. That was precisely why he had gotten involved in this matter and ultimately helped Carlos recover.

The Demon Power in Carlos's body was a special kind. Its purity was extraordinarily high, even purer than the Demon Power within most demons.

Su Xiao's Demon Mark had absorbed Demon Power once before, so he immediately thought of using it to absorb the Demon Power within Carlos's body.

After obtaining Carlos's blood from Caesar, Su Xiao immediately purified the Demon Power within it. As a result, Demon Mark easily absorbed that Demon Power. Although its level did not increase,