Immortal Emperor Returns: My Sister Is a Cultivation Genius?!

He sacrificed a hundred thousand years of power to rewrite fate itself. Once the supreme Immortal Emperor, he watched his sister humiliated and his clan destroyed—now he's back at the beginning, armed with ancient knowledge and a single mission: turn his ordinary little sister into an unstoppable cultivation prodigy. Evil spirits? Perfect training dummies. Zombie hordes? Excellent practice targets. Legendary bodyguards? All hers. His sister just wants a normal life, but with an overprotective Immortal Emperor for a brother, 'normal' was never an option.