In T.C. 71, seventy percent of humanity lives in orbital colonies built on Dyson Sphere technology, and high schooler Haruto Tokishima's neutral colony is caught in the middle when the Dorssian military invades. Haruto stumbles onto a giant humanoid weapon called Valvrave and ends up piloting it against Dorssian forces, among them the tactical genius L-elf Karlstein. This single volume retells the story of the TV anime.