In Manga: The Complete Guide, author Jason Thompson gave Japan two out of four stars and wrote: "This perhaps entertainingly nationalist fantasy is 50 percent fighting and 50 percent meaningless ruminations like 'What the hell does it mean to be Japanese anyway?'
Jason Thompson, in his book Manga: The Complete Guide, awarded Japan two out of four stars. He described the work as a "entertainingly nationalist fantasy" with 50% action and 50% pointless pondering about what it means to be Japanese.