* This demo is available for a limited time only, from Feb 10 to Mar 4, 2026 (JST).

In the demo version, you can play through the early part of the story and several puzzle stages.

Please note that save data from the demo cannot be carried over to the full version.

◆ Story

You wake up on a decayed island—

With no memory of who you are, you begin to explore the island's memories to uncover the truth about yourself.

What you find are the tragedies that struck the boys and girls and the mysterious phenomena surrounding this place.

The reason you're here, your true identity, and the island's future—

It is you who will decide them all.

◆ How to Play

This game is divided into two parts:

the Puzzle Part, where you collect Memory Cores,

and the Novel Part, where you relive the island's events through the memories stored within those cores.

Thrilling puzzle action with chain reactions

Hit blocks with bullets of the same color. If three or more connect, they explode!

Clear the path, set off a chain reaction to reach the main core at the deepest point, and grab it to clear the stage.

Since the number of bullets is limited, plan your moves so the explosions chain efficiently.

Unravel the island's story through Memory Cores

Offer the collected cores to the Great Tree to witness the memories of the people involved.

Perhaps items found in the Puzzle Part may awaken hidden memories...?