Mireille Bouquet, a highly skilled French assassin, receives a cryptic message from Kirika, a young woman with similar expertise and a lack of self-awareness. Their meeting reveals a striking similarity in skills and the absence of remorse, prompting Mireille to suspect a connection between them. As they travel together, they attempt to uncover their shared histories, evading the control of Les Soldats, an organization with a vested interest in their activities.
