Cecil immediately began explaining to the two girls about Ki and how it was an energy that could be cultivated alongside Mana. He also explained to them the higher form of energy that could be cultivated when both Ki and Mana are combined together, Ether.
The girls were immediately intrigued and after half a day of guidance, both Lucia and Serilla were able to gain an initial grasp and understanding of Ki.
The energy came from within the body, so it was much easier to sense than Mana, which was outside of the body at first.
"So...you mean you've been using Ki to cast those healing arts that you acquired from the World Tree's Trials?" Lucia asked when after they finished their cultivation session.
"Yeah, I'll teach you two how to do it once you've reached the Ki Formation Stage," Cecil
