Japan (Buronson manga)

Japan (ジャパン) is a manga by Buronson with art by Kentarou Miura.

Plot
A yakuza, in love with a TV reporter, comes to Barcelona, Spain, where she's making a reportage on what's the foreigners' idea of the Japanese people, and how Japanese people see themselves; during her speech, she makes a parallel between modern day Japan and the ancient Carthage, saying that the Carthaginians were wiped out by the Romans because of the same attitude Japanese people have nowadays, and because economic superiority brings war, and in the end loses to military strength. Suddenly there's an earthquake, and the ghosts of the Carthaginians bring the group (the two yakuza, the TV reporter and some university students) to the future, when the sea level has increased and all the islands which compose the Japanese archipelago have been submerged; the Japanese people have thus emigrated in the other countries, and they're now scattered around the world, and in particular in Europe, where after the cataclysm a dictatorship has been established, they've become slaves and bandits. Japan is long gone, and Japanese people are lost and oppressed; but among the newcomers, desperate of what they learn, the yakuza, who mostly wishes to protect the woman he dearly loves, has a dream: Japan can be refounded, if the Japanese people come together to fight for it.