Comrade is the third and final chapter of Utsutsukowashi-hen.
The police come to St. Lucia Academy to investigate another death; a member of the Academy fell to their death from the rooftops. Mizuho Kousaka informs the police that she knows a suspicious person who was present near the scene of the crime, leading to suspicion considering Mizuho was also present at the scene of the last death. Sister Maria informs Yukari that Mizuho's story about her grandmother nearly killing her is something Mizuho made up. Mizuho and Shion Sonozaki debate whether Saki Ootori was actually responsible for any deaths.