The cold wind howled.
Low rumbling echoed through the cloud layer.
In the darkness people didn't notice, aircraft made of steel and transparent materials, like ghosts, advanced through the sky.
Occasionally a few legendary magicians seemed to notice something in the sky. They looked up one after another, but couldn't catch exactly what was giving off those energy fluctuations!
This kind of feeling wasn't rare lately though.
Dragon Delivery passing by occasionally could cause the same commotion.
As for everyone else, they couldn't detect any changes at all.
Those tech combat clerics flying in the sky were like they'd gone invisible, unknown to anyone.
But as the leader of these Dragon Knight Type 1 aircraft formations, Margaret felt worried every time they passed a magic tower or major city.
This was the first time Dragon Knight Type 1 aircraft appeared outside the training grounds. This was also the first time these flying tech clerics entered actual combat.
