After Switching to a Lucky Beast, the Fiendish Beast Went on a Rampage

In the secret realm, auspicious beasts and ferocious beasts appeared together. In my previous life, my junior sister was first to contract an auspicious beast. But her cultivation was too low, and all the opportunities she gained ended up benefiting someone else. With no other choice, I had to contract a ferocious beast. That beast was monstrously powerful. I rose to become the Demon Realm’s Supreme Lord, then led an army to conquer the entire cultivation world and was revered as the Immortal Emperor. Reborn, my junior sister was first to contract the ferocious beast. “Senior Sister, it’s time you let me take the Immortal Emperor’s throne for a while.” I gave a cold laugh. She didn’t know that ferocious beasts admired strength, and would kill their masters.