She breaks through each puzzle by "hearing" the obsessions embedded in its rules, but the price is forgetting the person who saved her every time she solves one.
His name is Shen Yan. She has forgotten his face, forgotten his voice, and is close to forgetting his name.
But she left herself a message on paper: "Take Shen Yan with you."
Because at the next stop, the truth his older brother traded his life for is waiting for her.
Rules can be rewritten, obsessions can be answered, but I refuse to forget you.
