I've Fixed This BUG

Li Xuan travels through the fantasy world, has no qualifications, and is looked down upon. Awakening the BUG system, only to find that the whole world is full of loopholes! While others were practicing the Qi-Entraining Technique to sense spiritual energy, he directly got stuck and switched to absorbing solar energy, soaring to the fifth level of body tempering overnight. The opponent laughed wildly and unleashed a yellow-level martial skill. He silently clicked on the prompt: The backswing of the skill was detected to be too long. It is recommended to attack three inches below the left shoulder. The ninth level of the Immortal Emperor's magical power will lead to death? He calmly got stuck at the save point and failed to overcome the tribulation? Read the file again! When geniuses are still competing for talent, when ancestors are still in seclusion, when the Holy Land prides itself on having the highest rules... Li Xuan has silently exploited the loopholes in the system and broken the rules of the entire world. "Warning: Host behavior is causing unknown errors to occur in the 'Tiandao Runner Program'..." Li Xuan: "It's right if you're wrong! I'm stuck with this BUG!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.