By the sixth chapter of the Grauenheim apartment murders, the pattern Nao Tsunoda has been tracking is well-established: each victim disfigured with symbolic precision, each corpse arranged to carry a specific meaning. The apartment complex has long since stopped feeling merely gloomy — it is a locked room with a hunter still inside. The clues Nao has gathered across the previous chapters converge in Kapitel 6 toward the identity of the killer. What remains is whether she can act on what she has learned before the killer acts on her.