Supernatural, Action, Comedy, Seinen, Drama, Horror, Yuri, Adult, Mature

The ex-mass murderer turned hitwoman Koumori Kuroko lives in a city overflowing with heinous crimes and violence. Even though she is now a hired assassin by the Japanese police force, she has a record of murdering 715 people in the past since her childhood. Now she partners with Tozakura Hinako, a wild, lighthearted and innocent yet bold girl that drives like an absolute maniac, to destroy other mass murderers that are deemed unstoppable by normal means. And just because she's got a job to do, doesn't mean she can't have a good time with the ladies...