After firing the corrupt captains, Tarobei and Jinkichi hire Tsuyoshi and his younger brother Wataru to take over the commands on their ships. When a potential investor offers a loan on the condition that Tarobei gives his younger daughter Miwa as a bride to the investor's son, Tarobei gets into a conflict over his vow never to marry any of his daughters off for monetary reasons. Meanwhile, Miwa has fallen in love with Wataru, while Tsuyoshi has developed an affection for Mie, Miwa's older sister, who lost her husband in the war. After the new ship crews have successfully fought off the old ones, and Tarobei has finally been able to convince the association to renew the license (at the cost of his health), the ships can set sails.
