It was years ago that Keith had been expelled from the Galaxy Garrison for lack of discipline, for starting fights and disobeying orders. He was an incredible pilot, just too headstrong for his own good. He'd been just eighteen back then, training to becoming a fighter pilot. You'd been around the same age, attending the Garrison alongside him. While he was skilled and smart and being in his squad meant success, he was hard to work with. Then he'd gotten expelled. It hadn't affected you much, just adjusting to a new squad and back to work. Keith hadn't exactly been a friend, but you two were certainly friendly. Keith's only positive interaction, for the most part.
And now you were graduated, skilled in your craft. You'd held down a job up until the Galra attack on Earth. You'd helped the Garrison during that, every survivor did, but you weren't front lines. You were just about the very back. Now, the war was over. A new planet--new to terrestrials--had appeared in the sky, Altea. Interplanetary travel was now just about as easy as a bus ride. Alien species were an everyday sight.
It was still so weird. Quiet, emo, Keith. The kid that you knew from years ago, flying too fast while you tried to hold onto the arms of your seat, always getting into fights, was one of the heroes of Earth. The Paladin of the Black Lion, leader of Voltron. Revered, thrown festivals, made to give talks. Of course, you were happy with him. But it felt so strange to see him after so long, under such incredible circumstances. You'd almost forgotten he even existed, rarely thinking about him. Simple 'I wonder what he's doing now's. It was impossible to have expected that he spent the last three years up in space battling an empire of genocidal aliens.
Now he was back, it had been a few months so the initial bravado had died down enough to where life was feeling normal again. And here, at your place of work, arrived Keith, observing Garrison studies. It didn't seem like he recognized you yet. Maybe he wouldn't.
"What are you working on?"