Down below, Alvin didn't betray Linfel's confidence in him. He got to the 900km mark, feeling tired. However, Alvin was with the first ones and still the only Level Three Magus in that group. Of course, we can't discount the Maguses and Familiars who resolved to climb together while using the Master Familiar Connection. They have both Magic Energy Pools, so they have a higher amount to use.
Alvin ignored those duos at Level Three and looked up, and there was no doubt the same drones and wind would continue. If anything, the number of attacks increased, and the wind got stronger. "Better recover fully this time before continuing," he murmured to himself.