During the fifteen days of cultivation in the thunder pool, Yun Shuo almost always pushed his body to its absolute limit before coming out to rest and tend to his wounds. As soon as his body improved slightly, he would re-enter the thunder pool, repeating this cycle over and over. Yun Shuo's single Metal Spiritual Root gave him a higher tolerance for lightning than anyone else.
Even though his body was covered in charred marks from the lightning strikes, Yun Shuo refused to circulate his mental cultivation method to alleviate the pain. Instead, he practiced his sword techniques.
The agony of the lightning made Yun Shuo's fingers go numb, yet he never once let go of the spiritual sword in his hand. After fifteen days, not a single inch of skin on Yun Shuo's body remained intact. Before leaving the thunder pool, Yun Shuo straightened his attire and appearance, then headed to a spiritual spring within the sect.
Chapter 70