Martial Arts Era: Become Invincible by Doing Push-Ups

After the space tide passed, countless alien races focused on this world, and space invasions broke out all year round. In order to resist the aliens, the Federation vigorously promoted martial arts, and the Martial Arts Era flourished. Chen Chuan, who traveled to a strange world, found that he had become an ordinary student with mediocre martial arts qualifications. Fortunately, I have awakened my self-discipline system. As long as you give, you will be rewarded. Self-discipline can make people stronger! 100 Push-ups, 100 sit-ups, 100 squats, 10km of long-distance running... As long as you continue to complete various self-discipline achievements, you can get self-discipline points to exchange for various martial arts and magical items, thereby improving your strength! Attribute improvement cards, cultivation crystallization, Six Dragon Scale Locking Technique, Emperor's Holy Broken Sword, Wuji Divine Technique... More than ten years later, Chen Chuan suddenly looked back and realized that he had unknowingly become invincible in the world!