The history of Haikou, whose name literally means "seaport" in English, can be traced back to the Song Dynasty and has long stood as the gateway to China's southernmost province, as well as the door to the South China Sea. Due to its strategic position, Hainan has attracted the attention of various imperial powers in Modern History, but infightings among the Imperialists had fortunately freed the provinces from the consequences of colonialism - until the annexation by Imperial Japan, which plunged Hainan into the darkest and bloodiest era in its history.

Following the conclusion of the Second Sino-Japanese War, the Imperial Japanese Navy reluctantly transferred Hainan's ownership to the Republic of China per the Treaty of Guangdong. With the majority of Guangdong in the hands of Japan and local warlords now, Hainan remains the last stronghold of the province under the control of the Nanjing Government, who allowed Hainan to be ruled autonomously as a 'Special Administrative Region' in an attempt to win over the Guangdong population.

Today, Haikou serves as the capital of the Hainan SAR and one of the busiest transit ports in the Republic of China. However, beneath the prosperity of Haikou lies the frustration of the silent majority, who have never forgotten the scars left by the imperialists—as well as those collaborators who not only turned a blind eye to such tyranny but also betrayed their homeland.