The Villain Who Steals Heroines To Survive

I died and woke up as He Yunxiao, the handsome villain destined to be beheaded by the protagonist in a mere 20 chapters. Worse, my very presence has already sparked the ire of his sweet, innocent-looking sister. But the novel hid a dark secret: Chu Xiaoxiao, the demure sibling, is actually the world's most powerful martial artist—and a terrifying Yandere. She didn't kill me. Instead, she slipped me a Soul Devouring Pill and conscripted me into her personal service: to seduce every potential heroine and push them away from her beloved brother. Now, under constant threat of a soul-shattering bell, I must become the ultimate 'harem repellent,' or face a fate far worse than death. My mission: save my life by destroying the protagonist's love life. But what happens if I accidentally attract them instead?