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The Hollow Regalia Utsuro Naru Regalia
También conocida como: Hollow Regalia, Updating, Utsuro Naru Regalia, 虚ろなるレガリア · Utsuro Naru Regalia · 虚ろなるレガリア · Corpse Reviewer · 龍と蒼く深い海の間で · Ryuu to Aoku Fukai Umi no Ma de · All Hell Breaks Loose · 虛位王權 · Hollow Regalia · Hollow Regalia (Novel) · Utsuronaru Regalia · 虚ろなるレガリア (小説)
She's a dragon. He's a dragon slayer. And in this world, the Japanese have been wiped out! That day, giant dragons appeared in the sky above Tokyo, and the collapse of the nation of Japan began. With the arrival of monsters called Moju, Japanese people went extinct, and the nation was transformed into a lawless land occupied by armed forces and criminal syndicates. Yahiro is one of the few remaining. Having gained immortality from dragon's blood, he spends each lonely day as a "salvager," transporting artwork out of the uninhabited ruins of Tokyo…until one day, a pair of twin art dealers request that he salvage a particularly powerful and mysterious item.