So the hetalia gang were told by their bosses to observe high school students at their schools to see if their education is superior as "exchange students". The nations finally decide to go to one of Japan's finest school, Ouran High school. The nations soon encounter strange students who are apart of the Host Club? With the nation's slip ups with their names, the host club begins to get suspicious and tries to figure out their identities with no such luck. Yet Kyoya does not intend to give up just yet and continues to pry into the governments files but always fails. The nations soon encounter an obstacle that can get many people killed. A quite large group of robbers infiltrates the school with deadly weapons. But the nations will not lets them harm the innocent people in the school. What will be in store for these childish group of nations?