"FU. 10. Night Crawling"

The keyword is a signature acronym used by the character Ryōshū from the video game Limbus Company .

The practice of Fu 10 Night Crawling typically begins with a series of preparatory exercises, including meditation, breathing techniques, and physical warm-ups. The practitioner then proceeds to a series of slow, deliberate movements that mimic the actions of a crawling insect, such as a centipede or a spider. These movements are designed to stimulate the practitioner's nervous system and develop their ability to sense and respond to their environment.

Adaptive Optics:

Piercing through the haze of the 2:00 AM fog.

: This term often refers to the subculture of late-night activity, whether it is the "midnight climb" of urban explorers or the "collage" of human demand in a sleeping city. In a literary sense, it is explored in works like Leila Mottley’s Nightcrawling