Clean Blood Contest!
When William returned to the cultivation room, he kept the doors closed for a long time. He trained until he could use each technique perfectly. Moreover, after the meditation technique was completed, he gave his name again. “William's meditation.” This technique could truly be one of the best meditation techniques ever. He could even go further in his thoughts and claim that he was the only one on this 'small' island.
The current meditation speed was tens of times faster than the old meditation speed. He had filled his body, which had felt empty since gaining his bloodline power, in a few days by renting the metal cultivation room. It didn't even need a metal heart! His body had now turned from black iron to a higher quality metal. Or so he felt.
Finally, that day has come. Handing the key to the teacher, he left the cultivation building.