I Get a Marriage Certificate at the Beginning, and the System Gives Me a Thousand Years of Life.

[Single heroine + daily + relaxed + funny] Chen An accidentally traveled through the world of cultivation. The good news is: he has a system that will reward him with a thousand years of life at the beginning! And after completing the corresponding tasks, the system granted him immortality! The bad news is: the system he is bound to is a punishment system. Each task has a time limit. If it is not completed within the time, your life span will be deducted! With a marriage certificate in hand, he married the third daughter of the Murong family, a wealthy family in the Dayan Dynasty. However, because the other party suffered from a congenital disease and could not live to be twenty years old, she chose to leave him on the wedding night in order not to hurt Chen An. Life is full of ups and downs. Whenever Chen An thinks good luck is coming, bad luck will follow the next second. Following the guidance of the system's mission, he joined the sect and met an eccentric girl. The girl's appearance was like a ray of light, shining into his dark world. "Oops! I forgot that this fish cannot be eaten by mortals! Are you okay!?" … "I will protect you from now on, and no one can bully you!" … "I might have to miss my appointment..." Later... Chen An looked at the girl in his arms with slightly red eyes. "Actually... I already knew it was you!"