Having asked her old friend Vanel to find information on the people who are trying to kill Noir, Mireille is shocked to discover that whatever he has uncovered has cost the lives of him and his entire family. Realising that Vanel must have been onto something important, Mireille begins her own investigation to find out the secret that cost her friend his life.

Kirika and Mireille are in for a surprise when they find that another professional has already taken out their next target. Word on the streets is that Noir was the killer- do the rumours refer Kirika and Mireille, or is someone else using the same code name?