In 2002, Japan was struck by the devastating eruption of Mount Fuji, as well as a series of earthquakes and tsunamis that caused massive damage and placed the country in a state of emergency. Just days later, another powerful earthquake shook Japan, dividing the nation in two. As the Japanese people struggled in the aftermath of these disasters, various countries offered aid and assistance. China and the United States stepped in to lend a hand, with China governing the North and the US governing the South. Now, 15 years later, tensions have arisen between Japanese refugees living in Taiwan and the Taiwanese population. Job competition and poor living conditions for the refugees have led to clashes between the two groups. Genichiro Ryu is a survivor of the tragedy that struck Japan, but he was adopted by a Taiwanese couple and raised in Taiwan. He becomes involved in the conflict, hoping to bring the Japanese and Taiwanese communities together and foster coexistence between them.