The Unity Technique.

10:05 pm.

David glanced at the time with with an inexplicable expression on his face. He was standing at the edge of a balcony which was more than 20 meters away from the ground.

A few seconds later, he took out an eye glass from his pocket and wore it on his face. It was a Gadget that works like a path finder, kind of like a clear route seeker in the skies.

He wasn't the only who had the Sky walker and was obviously not the only one who was going to fly by it this night throughout the entire institute.

The eye glasses connects with other and makes a clear route for the user so as not to bump into others unexpectedly. The higher grade even had the Auto pilot function. Directly controlling the Sky Walker to fly safely to the assigned destination.