A girl named Momoka is found stabbed to death, and the game's rules are stated: the players must work together to find the "witch" who murdered Momoka, throwing the suspect onto a bonfire to win. With only two hours to search for the killer, Aguni and his followers, known as "militants", decide to throw everyone into the fire to collect the final card. As dozens are murdered, Usagi teams up with a group of players and rescues Arisu. Ann figures out that Hatter was murdered and searches for fingerprints on Momoka's body. The building is lit on fire, Kuina kills a dangerous militant known as the Last Boss, and Chishiya severely injures Niragi. After thinking about the logistics of the game, Arisu tells the group that he knows the identity of the hidden witch. Ann learns the murderer's identity, before being knocked unconscious.