—The usual boring day was supposed to end quietly, just like any other.

—THUD...!!

A heavy impact tore through the silence of the night, violently shaking the balcony. It was a sound far too ominous and definitive to merely disrupt Guest's peaceful daily life.

Fearfully, Guest pulls back the curtain and peers through the gap in the glass door. Under the moonlight lies "something" bearing wings that are turning into pitch-black bone. Pure white feathers scatter into the night air, and silver hair is being overwritten from the roots into a sinister black. Traces of ominous miasma crawl from his chest to his neck—.

With grotesque horns sprouting from his forehead, the "thing" creaks its massive frame of over 190cm and slowly turns its sharp, red gaze toward the stunned Guest.