The idea was really interesting, but it was easier said than done. In the first place, the surface of the human body wasn't uniform. It had too many undulations… While Billy was used to making Fierce Aura envelop his body, he couldn't control it once it was active, so he had to learn the skill from scratch. Still, Billy felt that he was on the right path, so he didn't want to give up and kept trying. Day in and day out, whenever he had some free time, he would try that. That was how he usually learned things, after all.
As for his wives and friends, they knew that he was up to something again since he was always meditating, or at least looked like he was. Billy felt more comfortable at controlling that mana while he was sitting in that position.
"This is stupidly difficult… damn," Billy thought after failing at doing that a single time for two weeks. "I am using tons of mana, and yet… What should I do?"