Lin Zhixia always thought that she was just an ordinary person.
Until her twenty-third birthday, she received an email from her mother.
The woman who had been dead for ten years told her in the email:
"Don't open that door."
But she opened it anyway.
From that day on, she became the 001st player in the retrospective game.
She has seen monsters that take the place of the dead and people that time has forgotten.
Side by side with strangers, she searches for the truth in one dead copy after another.
But as her memory gradually recovered, she discovered:
Mother's hidden secret,
The experiments behind the game,
And her own lost memories of thirteen years...
It turns out they are all the same answer.
She's not in the game.
She's just finally back where the game started.
Intention: Real retrospection is not to change the past, but to re-understand the past.