Sleep

The demon carcass disposal went effortlessly after that. 

The replanted trees and the links nearby grew into a micro forest under Aru's guidance. They followed his orders and did their job.

Soon, Aru left for the inner city again, this time to rest and sleep.

The people below looked in amazement as all the demon corpses disappeared below the ground and hundreds of trees and plants replaced them.

"He did it," Deva said, seeing Aru's figure flying over him towards the inner city.

Suddenly, a piece of wood fell from the blizzardwing towards Deva.

'Uh!'

Deva caught it.

Aru had thrown it down before he left.

"What is this?"

The wooden piece was rectangular and contained some kind of bizarre drawing.

"Leaving the city, going home?" One of the demon hunters who accidentally saw the drawing on the wooden piece said.

"What?" Deva exclaimed, confused. "You understand it?"