Even in death, Kugayama Shiori takes her own life.
Maybe her next will finally be her last.
But no matter how many times she dies, her soul refuses to leave this world.

Maybe the answer lies in her lost memories.
Maybe there's a lingering attachment she's forgotten.

Other than her name, she remembers nothing.
Who was she?
Why did she die?

Together with you—the only living person who can still speak to her—
Shiori begins her search for her memories, and for the truth behind her death.