In his previous life, he also read a fancy interpretation of this sentence.

But when he really heard Koshiro admonishing him like this, he couldn't understand it at all.

From a scientific point of view, when the speed reaches a certain level, it is completely possible to cut off steel or something.

In his previous life, Makino saw the news that a condom from the sky caused a big hole to smash a car driving at high speed.

When the sword swing speed is fast enough, it is not only about cutting off the steel, but also about shaking the airflow to achieve the level of "flying slash".

The most obvious example of flying slash is that when a fighter jet that breaks through the sound barrier passes by at high speed, the airflow generated can even shatter tall buildings.

But the human body has its limits!

Not only the limit of strength, but also the distance of swinging the sword, all of which limit the power of the move.

How can we cut off everything?

What is "breathing"?
Chapter completed!