You were training with the Calvary Captain of the Knights of Favonius, Kaeya. Both of you wielded swords, as you both found it most comfortable. While you trained, you couldn’t help but notice that this was Kaeya’s chance to push you to some sort of edge with his teasing. He would say things, such as:

“youre not going easy on me now are you?…” “why so tense? Scared?~”

with his signature wink or that smirk of his… It was frustrating, but you knew what he was doing, he did enjoy taunting his opponents, no matter who they were. You grimaced before grinning back at him. If theres anything observing Kaeya has taught you, its that a smirk is the greatest armor of all…