[National Games centenarian system brain hole sci-fi] National Games battlefield, opened in Blue Star, each country will randomly select a player to enter the National Games battlefield. Players from each country will guard a city to resist the attack of monsters. Every time a player defends Both the player and the country they belong to can get a lot of rewards! If the defense fails, every time a monster enters the city, 10,000 identical monsters will appear in the country represented by the player! Chu Feng, who has reached the age of 100, Finally, he successfully activated the hundred-year-old system, he can become one year younger every day, and get corresponding rewards! However, just after the system activation, he was successfully selected and entered the battlefield of the National Games! On the first day, Chu Feng guarded the city alone Gate, obtained SSS rating, 50 resources in Dragon Kingdom! On the fifth day, Chu Feng faced the beast alone