While looking for her missing brother, Kazuki Hiwa accidentally discovered that her brother was involved in a serial murder case - the Underworld Rose Case. In order to find her brother as soon as possible, she got acquainted with Yato, an unreliable policeman who investigated the murder case.
As a policeman, Yato developed a strange physique due to an incident many years ago. What is the relationship between that incident and the serial murder case? What interesting story will happen between policeman Yato and doctor Hiyori.
When will the rose of hell reappear, whose soul will be redeemed, and whether its thorns will sting the memory of the past.
Conception: