Jiang Li found herself trapped in a Mary Sue power fantasy novel—cast as the protagonist's heart demon.System: Your mission is to defeat the hero during his meteoric rise to dominance over the Three Realms... and usurp his place as the mightiest cultivator!Jiang Li stared at his fuzzy feline paws, then at the sword-wielding hero advancing menacingly. With a yowl, he flattened into a pancake-like feline form.Game over. Just spawned into the story and already about to be skewered by the hero's blade. :)To cling to life, Jiang Li snuffled and latched onto the hero's leg like a desperate furball.System: No slacking! Sabotage his Daoist resolve—make him feel the agony of cultivation!Jiang Li glanced left, glanced right, then launched himself headfirst into the hero's chest as he began meditating.Hero: ……System: Destroy his social network!Jiang Li trotted out, successfully distracting all the hero's fawning admirers, then returned home disheveled, cheeks stuffed with snacks and a pocket full of loot.Hero: ?System: Deplete his resources!Jiang Li chomped down on the hero's botched alchemical pills, swallowing the entire batch in one gulp.Hero: … Administering a digestion aid to his overstuffed demon-cat...Gu Qinglan had spent his life wandering, witnessing humanity's darkest shades. Raised in hatred, mockery, and curses, a prophecy once declared he would fall to his own psychological demon—never to rise again.When that day arrived, he gazed at the ankle-high kitten trembling at his feet and raised his Bonded Sword without a flicker of emotion.Simultaneously, the shivering kitten mustered courage, yowped a bite onto his shoelace, then collapsed aside clutching its jaw with an expression of martyrdom.Gu Qinglan: ……#You call THIS a heart demon?#He looks more terrified of ME being the demon#