" Senpai, this time, it’s okay if we say this case is mine? "

Winter of 2117. A vehicle out of control crashes in front of the Public Safety Bureau’s building.
The driver is Yasaka Izumi, a psychological counselor at the isolation facility for latent criminals in Aomori prefecture, the Sanctuary.
However, Yasaka immediate repatriation is decided right before her interrogation.
The inspector Shimotsuki Mika heads for Aomori prefecture to bring back Yasaka, along with the enforcer Ginoza Nobuchika.
What is waiting for them in that place is a “False paradise”.