Invincible Mortal

Su Yunqi traveled to the Xuanwu Continent, a world where immortal cultivators exist, but our protagonist is just a mortal, born without spiritual roots and unable to practice. After he was successfully bound to the system, he happily thought that he would become a practitioner capable of destroying heaven and earth with the help of plug-ins, but the system said: "This system cannot improve spiritual root qualifications." "If you don't have spiritual roots, you can't practice. Then how can I be invincible in the world?" Su Yunqi shouted in a broken voice. "Although I can't improve your spiritual root qualifications, I can help you become invincible!" The system responded domineeringly.