Let's end this in one blow
In the distance, a tall man with black hair observed the event from the sky while floating on a sword, alongside another tall man with white hair.
"It's hard to believe they're only thirteen. It's truly a disguised victory to be able to teach these young ones," replied the white-haired man.
"Yes, the worst part is knowing that both are holding back considerably. How much of their real power do you think they're using?" The black-haired man said, crossing his arms.
"Hard to say. Maybe the girl is using only 50%, but the boy... that boy is using even less. It's challenging for me to gauge him. It seems like there's some artifact concealing the presence of things within him."
"An angel and a demon flirting in a fight, it reminds me of my youth with Yuna," the white-haired man responded curiously, wanting to know the backstory that led to this point.