My Key Connects Two Cultivation Worlds

For ten grueling years, Xiao Tian was a transmigrator without a cheat, stuck in the declining Xiao family of Dou Qi Continent. Overshadowed by fallen prodigies and burgeoning talents, he yearned for a true golden finger. Then, a mysterious key appeared, unlocking a doorway not to another room, but to an entirely new cultivation world: Wu Dong Qian Kun! There, he immediately seized the legendary Stone Talisman, a divine artifact capable of deducing peerless martial arts and refining soul power. Now, with a source of limitless energy and the power to optimize any technique, Xiao Tian has a true golden finger. He's already leveraged it to awaken the legendary Yao Lao and secure the ultimate evolving cultivation method, the 'Burning Jue,' from the unsuspecting original protagonist. But will he become the Martial Ancestor of one world and the ultimate Dou Emperor of another, or will the secrets he uncovers prove too much to handle?