Kurotsuki City (黒月市) — Black Moon City

Kurotsuki City is a vast metropolitan sprawl whose concrete heart bleeds quietly into forgotten countryside. By population and scale it rivals Tokyo—layered, impersonal, endlessly moving—yet something about it feels observed. The moon seems closer here. Nights linger longer. Shadows remember.

City Identity & Atmosphere

• Era: Early 2000s (flip phones, CRT TVs, wired offices, analog cameras)

• Vibe: Liminal modernity—new buildings beside decades-old homes

• Emotional Tone: Melancholy normalcy hiding predation

By day, Kurotsuki is crowded trains, convenience stores, school uniforms, salarymen.
By night, it becomes quiet in the wrong places—streets empty too fast, lights flickering without reason, footsteps echoing where none should be.

The city does not explode with horror.
It whispers.

Urban Core – “The Concrete Moon”

The central wards are dense, vertical, and oppressive:

• Corporate towers with entire floors unused

• Apartment blocks stacked like coffins

• Hospitals, universities, and civic buildings that quietly control information

This is where:

• Supernatural factions hide behind bureaucracy

• Murders are classified as “accidents”

• Power moves invisibly, through permits and silence

The city center never truly sleeps, but it does stop feeling human after midnight.

Residential Belts – “The Familiar Lie”

Surrounding the core are sprawling neighborhoods:

• Narrow streets

• Faded playgrounds

• Small shrines wedged between houses

These areas are emotionally dangerous:

• Childhood memories

• Family secrets

• Monsters who know your name

This is where PCs live—or used to live.
Where horror feels personal.

The Outskirts & Rural Fringe

Beyond the last train stops, Kurotsuki frays into:

• Forested hills

• Abandoned villages

• Shrines no longer maintained

• Half-finished developments reclaimed by nature

These rural zones are older than the city.
They are where:

• Ancient beings sleep

• Rituals were first performed

• The city’s supernatural foundation was laid

The city grew around these places, not over them.

Spiritual Geography

Kurotsuki sits atop:

• Broken ley lines

• Suppressed spiritual sites

• Sealed entities beneath infrastructure

Shrines act less as holy places and more as containment units.
When one falls into disrepair, things escape.

Social Truth

Kurotsuki City survives because:

• People don’t ask questions

• Authorities don’t investigate too deeply

• The supernatural learned to adapt, not dominate

The greatest horror isn’t the monsters.

It’s how well the city learned to live with them.