Donan used that strategy to try to counter-attack Leon's attacks for a few minutes, but soon gave up on the idea and started to move around like a madman punching the walls and empty space while he tried to hit Leon by chance. However, he failed miserably. Donan was using the sounds to find Leon, and whenever he heard anything, he moved to somewhere and attacked…
"I knew it… his body is slowly getting destroyed by that dark aura…"
Leon couldn't use Appraisal without seeing the target with his own eyes, even though he could feel it, that wasn't enough. However, something like that became evident after Leon punched Donan's a few times… that dark aura also had the smell of blood, probably because Donan was bleeding inside of it, but the blood couldn't leave the aura.
