Work As A Lab Intern...

"But why?" Hael asked, still not understanding why the system suddenly forbade him from the only fighting style that he had cultivated from a young age. The War Demon Art had been instilled in him ever since he could understand what fighting meant and was said to be a self-defense technique known by every royal.

He had become so familiar with it that every reflexive move and fighting stance was that of the War Demon style, almost like his muscles and bones had already memorized it due to the endless years of repetition. Simply abandoning it or not using it in a fight was close to impossible.

Except, of course, he fights with only his Mana. But he had only just started learning Mana manipulation barely a week ago. He could never hope to have defeated Eiron with his Mana balls.

[Just trust me. That's final! When you should use it, I'll inform you beforehand...] the system said to him as Hael's eyebrows creased a little before he shrugged it off.