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Most of the text in this game was translated using AI.

Scenario 0 and Scenario 1 available for free play!

[Gray Protocol] is a visual novel detective game that deals with incidents occurring in the City-State of Belmarc, where magic and science coexist.

Under the keyword “Clue”,

approach the truth of each case through Investigation · Interrogation · Confrontation · Combination.

You become the City-State’s Fixer, “Orin”,

untangle intertwined clues and confront the truth hidden behind the controlled city.

○ Investigation

Orin’s companions will help you approach the truth with their own unique abilities.

Aera, who possesses the ability to control blood,

reconstructs autopsy results for you by reading information from the corpse without leaving a trace.

Lucan, equipped with a high-performance camera and analytical abilities,

captures subtle visual clues and marks traces that cannot be seen.

○ Interrogation

Interrogate the suspects.

They may sometimes provide new clues and cause each other’s alibis to be questioned.

Or they may refine each other’s alibis even further.

Moirai, who possesses keen senses,

detects individuals who react to specific statements or captures subtle disturbances in false testimony.

○ Confrontation

Based on the clues obtained so far, logically press the suspect.

If you succeed in the confrontation with the appropriate clue, their hidden truth may be revealed.

○ Clue Combination

Clues connect with one another to create “new clues.”

Based on these new clues, you can continue Interrogation, Confrontation, and further combinations.

When all clues are gathered, the truth will reveal itself.

○ Worldview

Belmarc, a City-State where magic and science coexist.

After The Great Cataclysm, Belmarc became a city that could collapse again at any time.

Therefore, it placed “stability” as its highest value.

Risks are eliminated, possibilities are managed, and unpredictable beings are restrained.

Can you push yourself forward within the current of order?

○ Scenarios

You can play five incidents intertwined with magic and science.

Each scenario unfolds independently, with an estimated playtime of approximately 1 hour and 30 minutes per scenario.

Scenario 0, A Dreamlike Bargain

At his teacher’s request, Orin welcomes a girl who entered from outside the City-State.

Her name is Aera.

She possessed incomprehensible power, yet was strangely human.

That meeting, which began as a simple “favor,” soon comes into contact with the darkness of Belmarc.

Scenario 1, The Edge

On their way to the checkpoint, an unexpected incident falls before Orin and his companions.

A mangled corpse, false testimony, and a Cognitus waiting for entry.

In that gray zone where the hand of the law does not reach, judgment was always in someone’s trigger.

Scenario 2, Walking the Line

An audit dispatched to the Association, and two corpses discovered in the restroom.

One person who existed at the same time, in different places.

To follow the truth was always to cross someone’s line.

Scenario 3, What One Wishes to Believe

A victim of uncertain identity

An unconfirmed cause of death

Though we believe in many things as we go on living,

what is it that you wish to believe?

Scenario 4, What Must Be Done

The final incident where controlled justice and personal choice collide.

○ Characters

In Belmarc, a city where magic and science are intertwined, three races coexist.

Humans possess neither magic nor transcendent computational ability,

yet they occupy the center of Belmarc through their remarkable adaptability.

Venerifa, a race that survived the witch hunts of the past,

possess animalistic traits and can wield various forms of magic.

Cognitus, mechanical lifeforms created for war,

were recognized as sentient beings 78 years ago and became members of the City-State.

In Belmarc, where interests clash,

you will resolve various incidents as a Fixer.