This is a story about a famous contract killer and a well-known vigilante named Amamiya Ren. ~ This japanese vigilante used to be in a killing spree saving other people's life while at one time he decided to be a contract killer. Until he met a group consist of 9 girls. ~ Will he decide to go back from contract killing to be a vigilante that everyone loves? ~ What are the reasons he decided to stop doing his vigilante work and start a killing contract.
86 parts