After living in Hong Kong for six years, for instance, I became tired of the crowds and the mess and wanted to move to Japan, but I didn't have a passport from anywhere. Fortunately, an official at the Japanese consulate was an alumnus of Tokyo University and helped me get a visa without any problems.
譬如我在香港待了六年，很厭倦那種又擠又亂的生活，想來日本卻又沒有任何國家的護照，就幸虧香港的日本領事處官員是東大校友，才能順利拿到簽證。