An e-mail containing the words "Make a pilgrimage for the past with me", accompanied by a strangely familiar tune, lure professional hitwoman Mireille Bouquet into meeting with Kirika Yumura, a Japanese amnesiac with amazing killing skills. Could the mysteries of Kirika's lost memories shed some light on Mireille's own past?

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…

Mireille and Kirika continue to chase leads that might help them locate a copy of the manuscript about the Soldats, unaware that the danger is greater than ever. For the Soldats council is fed up with playing Altena's games in which Kirika and Mireille are given ‘trials', and decide that now is the time to finish them off, once and for all…