He was not Ningen.
Kuzu's men banged on the walls. Hitori forgot about the person summoning dark energy and saying: 'This place is awesome.'
He lifted his hands to create more walls to block the entrance first, then pack the person with the sinister smile inside a box. He conjured walls and blocked the entrance but when it was time for the dark wizard, he paused.
Literally, he froze. When the person in Ningen's body twisted its arms and formed a few dark balls, he looked into Hitori's eyes and lifted his upper lip as he widened his eyes.
Hitori shuddered again, he took a step back but stumbled upon the stumbled stool. He fell on the wooden stool and then rolled to the ground.
He did a pushup and got off the ground. He found his cold sweat turning the brown floor into a dark brown shade. Hitori jerked his neck, grabbed his wand, and jumped to his feet.