The setting of Abara is a distorted realm characterized by soaring structures, and it revolves around the Gaunas, a tribe skilled in creating live armaments using bone manipulation from the spinal cord. By shaping layered armor, they can elevate their strength. The story follows Kudou Denji, who initially introduces himself as Itou Denji, as he embarks on a quest as a Gauna.
Furthermore, the second volume comprises a two-part side tale called "Digimortal."