Where Did It Go?

Sometime after Elizabeth left the king's bedchamber, Heinrich removed the nutrient solution supply cords strapped to his body and intended to roam the Royal Palace. He wanted to see what changed in the last 17 years with his own eyes.

Also, he wanted to see his son!

He felt incredibly guilty when he learnt that his son was all grown up!

With that thought in mind, he immediately left the bed and headed towards the door. He only took a few steps when he was quickly stunned by his actions.

Normally, an ordinary person would have required a long period of rehabilitation to regain their mobility, but he was no ordinary person. He was a 9th step Awakener. He only needed to execute the breathing technique of his royal family, the Great Sky Refining Art to absorb the surrounding energies to rejuvenate his swiveled muscles.

However!

He didn't execute the breathing technique yet! Where is he getting his strength from?