It is Our True Reason (1)

“This man is still really arrogant. Good! It's me who will teach you a lesson.”

Zheng-Fu, who was looking from a distance, spoke up after he saw the events that had happened from start to finish. He knew that the light-green-robed young man was very cocky and arrogant. If he had not met the real thing, he probably would not have given up. But to make him admit defeat with all his heart, Zheng-Fu had to use his secret aid to deal with this arrogant young man.

His method was that Zheng-Fu would choose a young man who had received assistance from the young man in the light green robe to train in a special course. And he would have that young man with a lower energy level defeat the light-green-robed young man to destroy his arrogance and ego.