Office

Two hours passed in which Nial replenished his mana to attack the hallway's wall over and over again.

It was an arduous task but it helped Nial control his dark energy with much more precision and comprehend more unique characteristics of the dark energy that he was unaware of before.

This prevented Nial's mood from souring. Instead, his determination increased the stronger his compressed dark energy attacks became. 

Meanwhile, Bell and Mathias attempted to deepen Nial's hand's imprint on the wall as well.

They exerted their utmost efforts to target the strongest possible attacks on a small area of the wall's surface.

However, this was much harder than expected, which was why not even Bella in her peak form was able to deepen the hand imprint Nial had created.

"Nial's dark energy in the compressed form is able to achieve something even I can't… Just what is this dark energy?"