Based on a popular web-released manga series by Hidekazu Himaruya, this has been described as a "cynical gag" story set in Europe in the years between WW1 and WW2 (1915-1939), using exaggerated caricatures of the different nationalities as portrayed by a gaggle of bishōnen boys. For example, the Italia Veneziano character is into pasta and women. The Deutsche (German) bishi loves potatoes and sausages, and Nippon is an otaku boy. Installments of the manga have jumped back and forth in setting from the ancient times to modern-day geopolitics. The manga's title comes the Japanese words for "useless" (hetare) and Italy (Italia).
Japan explains the true nature of a ninja's shuriken. Wartime leaves the Axis with a lack of coffee, and Germany is assigned to come up with an alternative.
The Newspaper Club, which consists of Germany, Italy, and Japan decide to interview all of the clubs in the school.
The Newspaper Club goes on to interview the Nordic Club, the Canada Club, the Elephant Appreciation Club, the Music Club, the Swim Team, and the ... "Going Home" club...?
Little Russia is picked on by Mongolia, Denmark, and Sweden; is freaked out by Little Ukraine, is rejected by a hamster, and fights the Battle on the Ice against the Teutonic Order (Prussia).
After meeting France, a Parisian mortal ponders what it means to live forever.
In which Chibi Romano is a cute tsundere who really does care for Spain (even though he has an odd way of showing it).
Japan stays over at America's place for a while. Extreme culture-conflict ensues.
Estonia finds all his websites hacked with each site displaying a drawing of Chibirussia. Immediately, Estonia accuses Russia of the dirty deed, but naturally Russia denies it. In order to solve the mystery, Estonia hires America to trace the hack.
The reasoning behind Netherlands being so obsessively concerned over money is revealed.
Greece's philosophical side makes an appearance, and more is revealed about his strange relationship with Turkey. Meanwhile, Italy and Turkey discuss the times when Chibitalia used to beat up Turkey, much to the surprise and disbelief of Germany.
All of the countries are threatened with embarrassing photos to come to an April Fool's gathering in even more embarrassing costumes.
It's Halloween night, and America wants Japan to help him finally win a Halloween prank war against the undefeated England.
Santa's missing and Finland is in a crisis. So he pleads for the other nations to spread the holiday cheer this Christmas until Santa can be found.
The countries are rated by how fast they walk. Prussia and Germany infiltrate an American camp, and are caught doing so.
France meets a girl and takes her on a tour. They discuss the Hundred Years War, Joan of Arc, and what she means to France.
England tells Seychelles that the Prince of England and his wife are going to her place for their honeymoon, but she must keep it secret. And during WWI, Italy forgets his gun, which is later found by Germany.
The axis and allies as well as others watch and discuss horror films from their countries.
The countries watch more horror films, and realize that horror films from other countries are weird. New Zealand makes his first appearance.
Sealand tries to make a new friend: the newest micro-nation, Wy.
The Axis Powers celebrate the first year anniversary of the Tripartite Pact.
As Sal Valentine's Day gets closer, Germany tries to figure out his relationship with Italy. Meanwhile, Austria tries to come up with a gift for his ex-wife Hungary.
Germany asks Italy out on a date, while Austria and Hungary realize that Germany has been basing himself on a book to help with proposals.
Almost two hundred years after America declared independence, England decides to do something for his birthday (despite the topic of America's independence making him ill).
Back in the time when Liechtenstein still had long hair, she was cared by Switzerland, who continued his guard from the other countries (whom he called "those idiots.") While so, she wondered how her brother maintained his independence for hundreds of years, even though he was surrounded by great, powerful countries.
Estonia falls asleep at the World Meeting, and upon awaking he discovers that all the nations have turned into women.