Kir got to the construction site for the Academy a bit later than he'd hoped, but only because he'd needed to go over details on how to properly make the cylinder and safety mechanisms. He very much emphasized exacting precision for each part.
He didn't know if he'd only get one chance to feed Kangetsu, so he wanted to get it right the first time.
When he asked for Kordia, he was directed to the wardroom.
Kir hadn't thought there would be too many casualties associated with construction, but what he found inside were mages - their mana strongly indicating either magic focused on generating force or working stone - mostly suffering from mana exhaustion.
One of the secrets he'd learned from Lumin was that mana exhaustion could happen when the body directly converted fats into mana, instead of passing the energy from the fats through the body. Alternatively, a body that couldn't handle a large intake of mana experienced a more acute form of this exhaustion.