Kioku Sousa ~Shinjuku Higashi-sho Jiken Fairu~

When an undocumented Vietnamese laborer rushes into the station holding a blood-stained knife, he is arrested for the murder of his construction company's president but maintains his innocence. As the investigation reveals the president may have been illegally exploiting undocumented workers, Onizuka draws parallels to his own past to piece together the truth.