Psychokinesis, the ability to intervene in the movement of material systems through the mind. In theory, regardless of whether it was macroscopic matter or microscopic matter, Psychokinesis could intervene with it.
Although air was invisible, it was indeed matter that existed. Even though Roy had not reached the stage of being able to control various air molecules through Psychokinesis, he could use it to control an area of air and compress it, resulting in the principle of an air shield.
With such a buffer layer, Roy had many advantages in chaotic fights. He was mainly involved in melee combat and naturally had to face many of these enemies head-on. Even a 0.1 second lag in the enemy's attack could give Roy more time to react.
Killing the enemy and collecting the scattered souls nearby meant that Roy had to monitor Xeron's situation while fighting.
