Spiritual Energy Recovery: My Skills Can Be Upgraded Infinitely

The King of Glory has traveled to a fantasy world where spiritual energy is revived and evil spirits dance wildly, and the super upgrade system is awakened! While everyone was still worried about whether they could awaken the martial spirit, Wang Nan awakened the top martial spirit, the Killing Angel! When everyone was laughing at Wang Nan who only had one skill slot and would never be able to break through the Black Iron level in his lifetime, they didn't know that Wang Nan had countless skill slots and his skills could be infinitely upgraded! Team? Do we need to form a team of spiritual masters to compete with demons? As everyone knows, Wang Nan alone is comparable to ten groups of spiritual masters! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.