Martial Arts, Those Years When I Was Invincible in the World

Travel through a different world and get an automatic upgrade system. You can upgrade anytime and even while idle! One day later, Zuo Qi suddenly discovered that he was invincible!! In this case, I will be the only immortal in this world! One step breaks through the nine heavens, and one grasps the path of reincarnation. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.