Martial Arts: Being Parasitized at the Beginning, Just Suck It up with Your Backhand

When Lu Li traveled to Daqian, his predecessor had been planted with parasitic seeds by demons as a food reserve! A traveling doctor with mysterious origins, a treatment method with unknown effects, a hungry demon, and a mysterious technique that no one has mastered. Fortunately, the exercise optimization system has awakened. Is it difficult to practice? Martial arts side effects? None exist. Years later, when his descendants asked Lu Li the secret of his success, he just smiled faintly. "My whole life depends entirely on my own efforts!"