Kairos was intently staring at Nicole. Or more particularly, her forehead. He saw the mana twist to become some strange diagram as it flowed downwards and to the rest of Nicole's body.
In other words, the most difficult part of understanding how spells were cast was actually figuring out what kind of strange diagram the head would shape into.
There was a part of Kairos that was just hoping the mana reacted to Nicole's emotions, but even when she started to blush, the mana did not budge slightly. On top of that, he could not even begin to understand how it was circulating around within.
Kairos held up his hand.
"Wait, wait, hold on."
Nicole stopped channeling the spell and looked back at him with confusion.
"Um, did you see something?"
Kairos nodded.
"I realized that spell was way too hard for me to learn. Could you try casting the frost spell instead and do it slowly?"
Nicole slowly nodded.
"Um, ok."