In the near-future city of “New Uranos,” people’s lives are managed by the AI system EDEN. It calculates optimal choices, corrects deviations within the city, and guides everyone toward what the system considers the “most correct” future.

And you are the chosen “Memory Restorer.”

Through Helios’ restoration device, you can enter the past, investigate events deemed abnormal, and attempt to correct mistakes that should never have happened. Accidents, disappearances, altered records, and inexplicable memory deviations all point to the same question:

Can the past truly be restored?

Enter the Past and Correct What Went Wrong

This is a sci-fi mystery visual novel centered on time regression, memory restoration, AI governance, and multi-ending choices.

You will follow Eli through multiple restoration missions, investigate the truth behind each incident, read records, piece together clues, and make choices at critical moments. Every restoration affects reality. Every choice may create a new deviation in the worldline.

You may believe you are only correcting the past. But before long, you will discover that what has been rewritten may not be limited to events. People’s memories, and even the reality you believe in, may have already been altered.

Her, or the World?

Through repeated restorations, the protagonist gradually approaches the truth hidden by the system. And the girl who once shared an important promise with him returns to his fate once more.

If the optimal solution given by the system demands that you abandon her. If saving her means the world will deviate from its intended future.

Will you obey EDEN’s judgment, or rewrite the so-called optimal solution with your own hands?

Character Introduction

Protagonist: Ciel

A Memory Restorer at Helios.

To uncover the truth left behind by his missing father, he joins the Helios Restoration Division and begins to investigate the machine known as the “Restoration Device.”

Free-spirited and independent, he hates having his life decided for him.
And yet, time and again, he willingly steps into the past, even if it means being forgotten by the world.

Heroine: Lin

A mysterious girl who appears repeatedly in Ciel’s dreams.

She seems to know the truth behind the Restoration Device and keeps trying to stop Ciel from becoming a Restorer.

Her name cannot be found in any record.
But Ciel knows she is not an illusion.

Restoration Division Member: Vera

The head of the Helios Restoration Division.

Calm and elegant, she makes decisions with reason and always protects her team when it matters most.

She understands the rules of the Restoration Division better than anyone.
And she knows better than anyone what kind of cost lies hidden behind them.

Restoration Division Member: Hana

Helios Restoration Division’s intelligence and documentation specialist.

Cheerful and sharp-eyed, she can always find the details others overlook within cold, impersonal records.

She may seem lighthearted, always ready with a teasing remark, but she knows better than anyone that so-called “official records” are not always the truth.

Restoration Division Member: Kyle

A technical specialist in the Helios Restoration Division.

Precise and methodical, he believes in systems, and in the “optimal solutions” calculated by EDEN.

He is one of Ciel’s trusted teammates.
But when truth and order collide, he must decide which side he will stand on.

Game Features

· A sci-fi mystery visual novel set in a near-future AI-controlled city
· A time-regression story centered on “memory restoration”
· Investigate records, compare clues, and uncover the truth hidden beneath altered reality
· A main story woven from multiple characters and interconnected incidents
· Player choices influence the story and lead to different endings
· A story about free will, optimal solutions, memory, and promises

Recommended For Players Who Enjoy

· Visual novels, interactive fiction, and story-driven games
· Time regression, multiple endings, mystery, and detective-style narratives
· Near-future settings, AI governance, and dystopian worldbuilding
· Character relationships, emotional choices, and stories shaped by fate

The past will not reveal the truth on its own.

You must enter it yourself, and choose who will be left behind.