Who taught him magic?

In 1498, the Imperial Academy of Magic ushered in the most stable year in its history.
Because, he graduated.
……
"Why do you store so much stench in your storage gem?"
During the magic game, the referee couldn't help but roar.
"I just want to interfere with my opponent!"
Green put on a gas mask and said seriously.
……
"Did you learn the art of transformation just to break into the girls' dormitory?"
In the student office, the student council president stared closely into his eyes.
"It was just an accident, I think I can explain it!"
……
"Who taught you to tie an alchemy bomb to your familiar, you bastard!"
On the battlefield, his enemy's face darkened and he roared angrily.
"Explosion is art! Haven't you heard of this saying?"
……