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.

Ten years ago, Mireille left Corsica with her uncle Claude, who looked after her and trained her as an assassin. Now, Claude has returned to Paris, but Mireille's delight at seeing her uncle again is tinged with doubt. An assassin of Claude's calibre is bound to have secrets of his own- secrets that could spell trouble for Noir…

Kirika and Mireille's partnership has come to an end, and with no place to return to, Kirika finds herself wandering through the wilderness. Found and rescued, she is taken to what seems like a simple country village. Yet when Kirika realises that all the villagers not only recognise her, but have been expecting her arrival, it becomes clear that all is not as it seems.