After My Daughter Disappeared, I Could See the Yesterday of the Mystery

In the seventh year since his daughter disappeared, the criminal policeman stayed silent in a disappearance case and broke into the victim's remaining "realm": the door that had not been pried open, the black mark that glowed, the trolley box containing the child... Every time he solved the mystery, he got closer to his daughter. Until the cell phone that had been missing for seven years came from her daughter's voice: "Dad, don't forget me."