Synopsis: Kidou Senshi Cross Bone Gundam: Skullheart

The manga is comprised of several distinct tales that revolve around the endeavors of the Crossbone Vanguard throughout and following the conclusion of the original series, with an exception being the initial story that transpires during the One Year War and delves into the younger days of Crossbone pilot Umon Samon. Moreover, the series introduces the reappearance of Grey Stork, who is an elderly depiction of Judau Ashta, and who had previously surfaced in Hasegawa's V Gundam Sidestory manga.