1 year and a half after the end of season 1, Unit 1 of the Public Security Bureau is back with Inspector Akané Tsunémori at its head. A brand new team which sets out in pursuit of a mysterious Kamui, instigator of numerous attacks. However, the very existence of Kamui is perfectly invisible to the eyes of the Sybil System. Once again, the limits of the Sybil System are tested. What will be the consequences for unit 1?