Perfect Lightning Element control. That was definitely necessary if Zangeshu wished to circulate Lightning Element inside his body without injuring himself. Of course, that was easier said than done. In the first hour, Zangeshu tasted the true feeling of death. He was forced to ignore all the damage he made to himself just so he could flee again from the apes.
Nonetheless, this kind of do or die method was exactly what was needed for someone like Zangeshu. As much as he cursed, bled, and burnt himself, his desire for vengeance propelled him to push forward. It felt even worse when he thought Rean and Kentucky were watching his struggle somewhere in this place.
What Zangeshu didn't know was that although the twins' training methods were savage, they were never something that couldn't be done. The only question was whether the expert being trained had the will to see the training through. Zangeshu and his pride definitely fit this description.
