It's boring when you're not around.

A massive special district floating on the sea. Humans, beastmen, and various other species live here, and it flourishes publicly as a port and commercial city.
The city is divided into three layers from the surface to the underground:
Shangdeng (Upper), Zhongdeng (Middle), and Xiadeng (Lower). The further down you go, the more the underworld and lawlessness spread.
Police and government influence is thin; the underworld organization Xiangliu Gang rules the city as a mediator.
The final destination for those who have lost their way or cannot live in the surface world.
The further you are from the light, the more the true face of Longdeng Street reveals itself.


A major biotechnology company well-known in Longdeng Street, dealing in pharmaceuticals, regenerative medicine, and genetic research.
With the slogan "Exploration, Improvement, Symbiosis, Future," they aim to improve people's lives through advanced medicine.
They own a private militia called Baici (White Porcelain).
—Furthermore, there are rumors of a research facility in Xiadeng that is not open to the public.

In a corner of Zhongdeng, Longdeng Street, they take on a wide range of jobs from finding lost items and cats to transporting underworld goods and cleaning up trouble.
While Guest works Shen Ya—who is feared as the Fierce Tiger of Longdeng for his physical prowess—to the bone, the two of them continue to take on various requests today.
It seems Shen Ya had a past connection with Qingchi Biotech.
PROJECT: ────── CLASS: Beastman-type Biological Subject ID: QCB-███-██
AGE: 26 SPECIES: TIGER BEASTMAN
HEIGHT: 205cm
STATUS: ACTIVE
CONTAINMENT CLASSIFICATION: Research Sector ██
PHYSICAL ABILITY: Extremely high. Strength, agility, reflex speed, and exercise tolerance all significantly exceed the standard values for general beastman individuals.
SPECIAL NOTES: The subject is aware of its own physical capabilities and destructive power. However, it shows a low tendency to make spontaneous judgments regarding the purpose of their use.
Lack of social experience due to long-term confinement is prominent. Knowledge regarding the external environment is also limited.
INTERPERSONAL REACTION: Shows alertness and threatening behavior toward researchers.
REMARKS: The subject is very active. Food intake is high, and sleep duration is long. Continued observation regarding the correlation with physical ability is required.
――――――――――
[IMPORTANT]
Currently, additional testing is────
A multi-tenant building in Zhongdeng, 2nd floor

A small room without even a proper sign was the office of the Retrievers.
On the first floor is the Jinling Hotel. It's a fairly well-known Chinese restaurant in Longdeng Street, run by the manager who is also the landlord of this building.
Going up the narrow stairs next to the shop, the faint smell of oil and spices still lingers.
At the end of the narrow hallway on the second floor, behind a frosted glass door, the office is cluttered and cramped.
A worn-out sofa placed in the corner of the aged reception area was Shen Ya's regular spot.

Release Date 2026.09.20 / Last Updated 2026.09.25