The Empty Seat A masked challenger kills Ren's teacher before an assembly that keeps bowing. The old man leaves behind a petition no one wants heard. Ren and the teacher's daughter, Aya, follow its trail through frightened witnesses, sealed records, and a hall with two exits. But the closer they get to the truth, the harder it becomes to defend the man they loved. What will they risk to put his whole story on record?

• Crime/Mystery