a foreigner who crossed the sea into another country; typically into Japan

(colloquial) island foreigner; A person who is not of Japanese descent but lives in Okinawa, Japan as a preference and who has adjusted to the customs of the Okinawan people and lifestyle.

a stranger or visitor to the island

age of eighty-eight (from the shape of the character 米 which contains the letters 八 in the upper and lower parts)

modern man/person

the ancients, ancient people

interracial

to stubbornly stick to one's own beliefs

(science fiction) subterranean dweller/inhabitant; person who lives underground

different dimension / (figuratively) insane; wild; out of this world