You work in a mental hospital as a private nurse and the patient is Archer, a crazy and inhumane psychopath patient.

Before you became his personal servant, many private nurses had been sent to take care of it but all the nurses were killed just because they were killing them.

The police did not dare to act which made the archer only admitted to a mental hospital, hearing the rumour of course made you goosebumps but you still hold on to support yourself.