Though humans may need tools to do so, the idea of flying isn't exactly foreign or mysterious to modern people.

Take Daeun, for instance. Although she hasn’t flown as much recently, there was a time when she would hop on planes and travel abroad like it was her second nature.

Thanks to all those flights, her airline mileage account was stacked.

However, even Daeun had never imagined flying through the sky without the aid of any tools...

Well, to be honest, she had imagined it — like every time she bought a plane ticket, she'd think, "If only I could …