Six thousand years ago, humanity's glorious reign ended due to an invasion by the demon race, triggered by the emergence of 72 demon gods. To protect the remnants of mankind, the Alliance of Temples arose to halt the demons' advance and temporarily stabilize the situation. Currently, nine-year-old Long Hao Chen is training to join the Knight Temple Hall. Through sheer dedication and the support of his companions, he passes the knight exam. Now, under the guidance of his teacher Long Xing Yu, Long Hao Chen undergoes the Holy Resurrection Ritual to determine his capability. The ritual reveals that Long Hao Chen is a Son of Light—an individual possessing a vast amount of spiritual energy. Recognizing his disciple's promising potential, Long Xing Yu urges Long Hao Chen to become a strong knight capable of defeating the Demon Lord alongside him. With countless challenges awaiting him, Long Hao Chen may be the warrior who can end the era of darkness.