C39 Devil king's art

He had smeared the blood on the Demon King Sword before, and although it was not completely smeared, it was smeared all over half of the sword's body. At that time, nothing special happened, so this time, Liu Zichen had ruthlessly decided to smudge the entire Demon King Sword.

He used the Demon King's Sword to cut his wrist, then smeared it bit by bit