I, the Mythical White Tiger, Start to Enslave the Empress.

This is a world where everyone controls beasts! After traveling through time, Su Bai found that he had become the mythical beast White Tiger. And he is still trapped in a hidden secret realm. Only humans who come to make a contract can leave the secret realm. This day, a woman who calls herself the Empress came and wanted to sign a contract with me to become her contracted beast. It's true that I want to leave the secret realm, but can't I tell the difference between the big and small kings? I still want to enslave this divine beast! Eat one of my reverse contract spells and become my favorite. ... I, Liu Yunyan, the empress of the human race. He was assassinated by several dark enemies of the evil forces, and was accidentally reborn to the day when he was 18 years old and contracted to be a beast master. I accidentally broke into a hidden secret realm, where S-level spiritual beasts were flying everywhere, and SSS-level spiritual beasts were everywhere. There is even a mythical white tiger! What? Am I contracted by the White Tiger? Become its pet? Well, considering the bloodline of the mythical beast, why is this impossible~