Kenji and Chuko travel to Hokkaido as migrant workers and enlist as miners under the strict leadership of Guzuyasu. On the boat journey to Hokkaido, Kenji attracts Ohama, who is travelling to Hokkaido to open a bar. When Kenji visits the bar, he chases away a sailor who was hassling a shy girl, Ofuji, which makes Ohama jealous.