I Suppressed the Darkness for a Million Years, and the System Only Just Arrived?

Zheng Tian transmigrated into a fantasy world, but waited in vain for a golden finger. With no other choice, he awakened an invincible constitution himself, sweeping aside sect prodigies and defeating the supreme young talents. He beat the young ones, then the old ones, then the even older ones. A thousand years later, he became the youngest Saint Heavenly Venerable in the Immortal Domain of Eternal Life, invincible in the world. When the dark upheaval arrived, Zheng Tian went alone to the Demon Abyss and suppressed the darkness with a single hand! But one day, a million years after he had put down the darkness... 【Ding! Congratulations, Host, you have awakened the Invincible Choice System!】 【Please choose one of the following Systems:】 【Option One: Invincible Sign-In System.】 【Option Two: Invincible Killing Star System.】 【Option Three: Invincible Show-Off System.】 Zheng Tian chuckled. “Only children make choices. I want them all!”