Squad 422 — "The Nameless" — is a penal military unit whose members have had their real names erased from official records and replaced with numbers. Criminals, foreign deserters, disgraced soldiers. Motto: Altaha Abilia — Always Ready. The Gallian Army sends them on the missions too dangerous or too politically sensitive for regular forces. The three leads are Kurt Irving (No. 7, falsely accused of treason), Imca (Ace No. 1, a Darcsen heavy weapons specialist seeking revenge against the Valkyria who destroyed her home), and Riela Marcellis (No. 13, seemingly cursed, unknowingly a Valkyria herself). Their enemy is Calamity Raven, a Darcsen Imperial unit whose leader Dahau offers Darcsen independence as his cause. When Gusurg defects to Calamity Raven, the Nameless finds itself hounded from both sides — including from within Gallian Army Command, which would find it convenient if the 422nd simply disappeared. Only getting their commanding officer Ramsey Crowe to the capital with evidence can clear them.