"Teacher, I have a question." A student raised his hand after the teacher's explanation.
"Go ahead."
"My father used magic silently with swift execution, how can I do it? All I can do right now is to create sparks and a small flame as big as the fire in a candle."
"It all took time and rigorous training to reach that level of proficiency. There is a solid reason why your family didn't teach you any magic, no matter what status you had before you became a second-grader in any academy." Teacher Ruth happily explained to the clueless student.
Even though she said it with 'any academy', actually in the Human Continent there were only three academies.
"Teacher Ruth, why do some people scream before casting magic from their magic circle?" Another student also asked because he thought they had entered the question and answer session.
"That technique can also be used as a macro for your brain to concentrate on the magic you are going to cast. Look at this, Fire Ball!"