Before declaring a character that isn't yours a Mary Sue, or if you get people declaring your Mary Sue character for questionable reasons (eg, the character is simply a powerful female)...
Nansha District, is a district of Guangzhou, China. Port of Guangzhou is located within the southern portion of the new area. The Nansha Technology Development Zone was carved out of Panyu District in 1993. In 2005 it was named Nansha District.
Present day map of China showing location of Shanghai and Nanking (now called Nanjing). Map of the Japanese Empire at its peak in 1942. One of the last humans left alive after intense bombing during the Japanese attack on Shanghai's South Station. August 1937.