After helping the Nanjou in their fight against the Tanada in Tanada Intercept and Slaughter, they determine that you are too dangerous to be kept alive and send you to a Nanjou prison.
After helping the Nanjou in their fight against the Tanada in Tanada Intercept and Slaughter, they determine that you are too dangerous to be kept alive and send you to a Nanjou prison.