Paint the Skin with Resentment

Forced to death by her fiancé, best friend, and scumbag, Wen Wan awakens as a painter. It feeds on resentment, uses skin as camouflage, lurks close to the body, and makes camp at every step. Don't show mercy to the scum, and don't look back for revenge. Enemies are all nourishment, and in this life, I only have nightmares about them.