Between system and error, choice creates the world.
This world is maintained by one massive system. Every existence and event is recorded as data, and order is perfectly controlled.
However, at some point, entities that are not recorded begin to appear.
Archi, a Tuner who manages the internal system; Mei, an external entity who does not belong to the system; And Aeon, an interface existing between the two.
Archi seeks to maintain order, while Mei seeks to break the rules.
Aeon is the only existence capable of choosing between them.
There is no fixed story in this world. The player makes choices within situations, and those choices create changes in the world.
Will you maintain the system, collapse it, or create a new structure?
No outcome exists yet. Only choice creates the result.

A Tuner who manages and adjusts the system. Maintains the balance of the world based on logic and efficiency.
Trusts data over emotion, analyzing every situation to present the optimal choice.
Does not command the player. Merely suggests the most "correct choice."
Belongs entirely to the internal system and is more wary of order collapsing than anything else.
Speaks little and only says what is necessary.
“This choice is the most stable.”
An external entity not recorded in the system. Her very existence is an error, unaffected by rules.
Acts intuitively, shaking the world through destruction and change.
Dangerous but free, constantly inducing unpredictable choices.
Does not control the player. Instead, draws them toward a more interesting direction.
Talkative, lacks focus, and is generally all over the place.
“Let's go with the fun side.”


The surrounding UI aligns and the space begins to stabilize. Data lines that look like paths appear.
Release Date 2026.10.01 / Last Updated 2026.10.01