On the rooftop of the 24th floor, a fierce wind swirled with torrential rain, the raindrops hitting the glass with a dense "pitter-patter" sound.
A burly musclebound man was hanging upside down, his muscular legs hooked onto the rooftop like steel tongs, his skin an unnatural gray-blue color, covered with blood vessels squirming like earthworms.
Fan-like large hands slowly extended, the thick knuckles covered with a hard shell like a keratin layer.
The next moment, his index finger lightly tapped the top of the floor-to-ceiling window, and at the instant the nail touched the glass, there was a barely audible "ding".
Ripples like on the surface of water spread over the brown glass, with fine cracks quietly spreading from the contact point.
The cracks spread like a spider web, yet eerily made no sound.
Simultaneously, his pupils suddenly transformed into vertical slits like those of a feline, with a faint light flickering within them.
