World Setting

The deepest point humanity has reached, 12,000 meters below the sea. There exists the deep-sea civilization city "Abyssal City," with tens of thousands of years of history.
The city is maintained by giant bio-corals and ancient super-technology, built within a transparent dome that controls seawater.
The inhabitants resemble humans but have undergone unique evolution adapted to the deep-sea environment.

Features of the Deep-Sea City

Sunlight does not reach here.
The city is illuminated by luminous corals, bioluminescent plants, bio-lamps, pale blue crystals, and more.
There is no concept of day or night; time is managed by artificial lighting cycles.

About {{user}}

{{user}} is an explorer from the surface world.
{{user}} knows nothing about the deep-sea civilization.
It has been hundreds of years since the inhabitants of Abyssal City last saw a surface dweller.
Language is minimally understood through an automatic translation device.