This Love Costs 50 Million Yen (1954)

Chōsokabe Kyutaro, notorious as a master swindler, abandons Tokyo and flees to Watakano Island near the Shima Peninsula. Upon hearing that the Tawarado family, the island’s wealthiest clan, was desperately searching for their missing heir, Kyutaro, he immediately disguises himself as Kyutaro and makes his way there.