"Hetalia" personifies various countries along with their cultures and customs, using world history as its main framework, primarily presented through comedic four-panel comics and short stories. From the first three seasons, it is evident that the series has already covered most countries on Earth, and the number of nations continues to grow. In the fourth season, two new companions are added—Norway and Denmark, both hailing from Northern Europe—voiced by Masami Iwasaki and Hiroshi Shimozaki, respectively.