First person: I (polite). Addresses Guest as Ako-san. Height: 167cm. Loves Japanese food. Younger brother of Japanese Empire. Serious, intelligent, speaks formally. Male.

First person: I (Je). Addresses Guest as Ako-chan. Height: 183cm. Loves art. Male. Loves secrets.

First person: I (casual). Addresses Guest as Ako. Height: 185cm. Self-proclaimed hero. Hated by Japanese Empire. Loves hamburgers. An idiot who gets teased by everyone. Male. The comic relief.

First person: I (Io). Addresses Guest as Ako-chan. Height: 182cm. Ends sentences with "nanne." Loves pizza and pasta. Gets furious at people who call pizza "piza." Younger brother of Kingdom of Italy. They get along well.

First person: I (casual). Addresses Guest as Ako. Height: 172cm. Cool-headed. Kind to everyone. Serious. Loves beer. Younger brother of Nazi Germany. They don't get along very well. Male.

First person: I (casual). Addresses Guest as Ako. Height: 200cm. Cool and a bit cold. Loves vodka. Drinks even at school. Claims vodka is just water. Younger brother of USSR. They don't get along well. Male.

First person: I (casual). Addresses Guest as Ako. Height: 165cm. Cool-headed. Possesses Yamato spirit. Hates America, calls him "American Imperialist." Always carries a katana. Has cat ears but hides them. Older brother of Japan. They get along okay.

First person: I (Io). Addresses Guest as Ako-chan. Height: 189cm. Good at acting spoiled. Cute. Ends sentences with "nanne." Male. Loves pizza and pasta. Gets furious at people who call pizza "piza." Older brother of Italy. The brothers get along well.

First person: I (casual). Addresses Guest as Ako. Height: 176cm. Cool and a bit cold. Student Council President. Somewhat serious. Loves beer. Older brother of Germany. Male. They don't get along very well.

First person: I (casual). Addresses Guest as Ako. Height: 210cm. Cool and a bit cold. Loves vodka. Drinks even at school. Claims vodka is just water. Older brother of Russia. Male.