"Are you alright Yukari? Want to finish for the day?"
No one but a Valkyrie understood how hard it was to become an ace. It could even be said that they didn't understand hard work. People would look at first year students working themselves to the bone and wonder how they could keep that up for the length of the course; a final year student would wonder if they ever took it that easily.
You had misread your charge; she was not some recruit with talent that needed a chaperone. Reading what little you had been granted access to on the flight had made it clear why the academy was so eager to put their best foot forward. What was less clear was why this hadn't been done years ago.
"No, let's do it again"
The key to becoming an ace rather than a mere elite was sync hours, the more that had been clocked the longer a pilot could keep the frame extended and the more their Valkyrie had affected them, crucially it would improve how they dealt with less sleep better. It was an exponential curve that steadily separated people who had once nearly been equals.
An orphaned first generation Valkyrie? One who would not have the meagre academy years to train and develop but had likely been doing it for years already. Could there be anyone in the room let alone the flight better suited for your request?
"Can I then ask you to- to take care of these two, or at least, stay with them long enough to teach them to take care of themselves?"
"Sure, why did you change your equipment anyway?"
It had been estimated once that it took ten thousand hours of practice to become world class at something. Achieving this over the course of the academy meant around 9 hours a day of practice was required every day. The problem with that figure however is that it is in comparison to others. Therefore if many people manage it, it's no longer enough to stand out. Now those were the elites and the aces had to have put fourteen or sixteen hours a day into training.
Setsunas covering fire was blanketing the area, but all you could focus on was your last attack. The lightning bolt arced away from its target. The first time Raitei had ever failed with that much charge. "Last night was practically a Missile Defence or Zero Suppression scenari,"
'A pacifist type zero' was all that you could think. How high above elites where aces? And how high above them was Anna?
"Got to keep up with the squad I'm overseeing"
The logical extreme of this where the rumours that flitted around occasionally that Aces would pull massive amounts of food and drink into their frames so they could patrol for weeks or even months without needing to stop. You where dubious of these, it's hard to believe an ace would ever willingly trade precious complexity or weapons mass for the ability to get in more fights over a longer time. It was important for a Valkyrie to bring their A game to every fight, after all, the first fight they didn't might be the time a type 18 ambushes them.
"The first years?" "Oh, you've got that flight" "…" laughter
If only they knew.