In 1782, Guang Tai Fu and others were unfortunately killed at sea. After nine months of drifting, they reached the Kamchatka Peninsula in Russia. The six Japanese who survived tried to find a way to return home, but were repeatedly frustrated by the severe cold in Siberia. Zhuang Zang, whose leg was amputated because of frostbite, became a Catholic, and the young Xinzang and the Russian woman Nina eloped in love. With the help of the scholar Laxman, Guang Taifu understood the brilliant culture of Russia, and he wanted to convey this strong impact to the people of his hometown, so he strengthened his willingness to return home. Guangtaro came to Petersburg, the capital, and with the help of several aristocrats, succeeded in meeting Yekaterina II. Ten years later, Mitsuo Koichi and Koji finally returned to Japan, but their home country, which adopted the policy of isolation, did not welcome their return from untold hardships.