Souretsu mu Tsuchi-koku chi Senki(1969)

Souretsu mu Tsuchi-koku chi Senki

Some beatniks, a prophet, some music lovers, and a fat rich kid who is tended by two starving minions, all converge on a street corner. Here the prophet urges them to follow him to a deserted island. A great and unknown adventure awaits them on the island.