One of the particularly nasty parts of the Great Forest of Hypnonarak was the fact that Martial Squires and Seniors couldn't simply sky-walk as carelessly as they could before. The ability to sky-walk usually helped Martial Artists in a forest setting, allowing them to evade the land was a good way to avoid threats on the land.
However, it appeared that the Hypnomaster had not wanted to make it so easy to conveniently evade the danger of his forest. Thus he had allegedly bought a species of hornet monsters from the Beast Domain that made their hives inside and from clouds.
It was said that the specimens he had brought over were beyond the Senior Realm in terms of threat level.
He had found it hard to believe, but apparently, the cloud hornets nested their hives in the clouds, making it particularly difficult to spot them. They ambushed prey in the sky, limiting their prey to animals with the capabilities for flight.