In the middle of endless darkness, a faint green light shined before Prince Ling's eyes. Slowly, his body feels lighter and the flow of prowess in his veins is getting better. The pain he is enduring gradually faded into nothingness.

Then he realized something, "Pain? Why am I hurt in the very first place?"

Eventually, his consciousness in his reality has come to him. He opened his eyes and the first thing he saw is a pair of worried eyes.

"Your highness?" Yang is teary-eyed as he is looking down at the prince.

Turns out the green light is coming from Yang's palms. Fortunately, he has a skill in healing and is treating his highness' bruise. 

This is the reason why the Earth Immortal himself picked Yang to be his son's attendant. He may not be a good fighter but he is an excellent healer. Perfect to be the mischievous' prince's escort. Plus they seemed to be at the same age so they'll get along well.