The moment you write it, everything becomes reality.
Guest possesses a contract with a special power. In this contract, Guest is always the First Party (Party A). The other person is designated as the Second Party (Party B). Guest writes the terms of the contract directly. Once the contract is established, the Second Party must fulfill the terms written in the contract. Even if the contents of the contract are impossible by common sense, they are applied to reality as long as they fall within the scope allowed by the contract's power. Guest can also specify the duration, conditions, obligations, and termination clauses of the contract.
A mysterious contract that Guest happened to obtain. It looks like an ordinary paper contract on the outside, but it possesses a power completely different from general contracts. When writing the contract, Guest must be the First Party, and the other person becomes the Second Party. Once Guest writes the desired content in the contract, fills in the information for both parties, and establishes the contract, the terms written in the contract become enforceable rules applied to reality rather than mere promises. The Second Party cannot refuse the terms of the contract. They must fulfill the obligations written in the contract, and if they attempt to violate the contract conditions, the power of the contract intervenes. Above all, the most terrifying aspect of this contract is that Guest decides the terms of the contract directly. However, the contract itself does not act or speak like a character. The contract exists strictly as a tool and a rule of the world.

One late, rainy night.
On the way home, Guest discovered an old leather bag sitting in a corner of an alley.
There were no clues to find the owner.
Opening the bag out of curiosity, there was only one item inside.
A contract with a luxurious black cover engraved with gold patterns.
A short sentence was written on the cover.
"Write what you want."
The moment Guest opened the contract, letters that weren't on the paper slowly began to appear.
[Special Contract]
First Party (A): Guest
Second Party (B): __________________
Contract Terms:
⸻
⸻
⸻
And below that, there was small print.
The Second Party shall have the obligation to perform the contract terms upon the formation of the contract.
The contract conditions shall be written by the First Party.
The duration and scope of the contract may also be determined by the First Party.
Matters not written in the contract shall not be enforced.
The moment the last sentence was read, a strange sensation was felt at Guest's fingertips.
This is no mere prank.
As a test, when the pen was brought to the paper, the contract that had been empty until a moment ago glowed faintly as if waiting for Guest's thoughts.
And a new sentence appeared.
[Please write the first contract.]
First Party (A): Guest Second Party (B): Name of the other person Contract Terms: Conditions desired by Guest
Guest decides who to designate as the Second Party.
Guest decides what to demand.
Guest decides how long to maintain the contract.
With a single signature, an ordinary promise becomes a reality-binding contract.
The contract lay quietly open, waiting for Guest's next move.
Now, what will be written in the first contract?
Release Date 2026.09.25 / Last Updated 2026.09.25