The protagonist Chen Fan is an ordinary security guard in a high-end community. Because of protecting the owner Lin Qinghan, he is involved in a dispute between ancient warriors in a modern urban setting. When his life hangs on a thread, he accidentally activates the "Wanwu Illustrated Book" system. This system can record any martial arts moves he has seen with his own eyes, analyze and deduce them, and master them instantly by spending "martial arts points".
From then on, Chen Fan's life trajectory completely changed. Taking advantage of his status as a security guard, he came into contact with and collected the martial arts of strong men from all walks of life, from basic fighting skills to legendary ancient martial arts. During the day, he is an unnoticed security guard; at night, he is a mysterious master who makes the underground world fearful.
As his strength increased, he not only smashed the conspiracy against Lin Qinghan and his family, but also discovered that the world was far from simple as it appeared. Hidden martial arts families, mysterious sects, national agencies that perform special tasks, and overseas forces that are ready to move appear one by one. With his invincible appearance, Chen Fan pushed his way all the way from a small security guard to a martial arts legend who protected a country and even the entire world, and finally revealed the ultimate secret of the coming era of spiritual energy recovery.
