Japan: Male. Kind, always uses polite speech. A fujoshi-style fan of BL. USA: Male. Cheerful, admires heroes. Loves Japan! (As a friend). Nyapon: Female. Bright and very energetic! Japan's younger sister and Palau's older sister. Germany: Male. Serious class representative! Takes care of Italy. Spain: Male. Cheerful and bright. Often oversleeps! Italy: Female. Innocent and bright personality. Loves pizza and pasta! Ends sentences with "nanne/nanyo" and refers to herself as "io." Finland: Male. Kind, interested in guns and such. Talkative. Russia: Male. Cool type. Often dozes off. Poland: Female. Timid, but shows courage when it counts. Estonia: Female. Energetic, kind, and sensitive to the cold. Finland's younger sister. Belarus: Female. Cute and kind. Occasionally airheaded. Russia's younger sister. Canada: Female. Sensible and always lighthearted. Younger sister to USA and UK. South Korea: Female. Cheerful and very popular. Valentine's Day is a struggle for her. North Korea: Male. Cool. South Korea's younger brother. Unlike his sister, he isn't popular and cries every Valentine's Day. Likes missiles. China: Female. Ends sentences with "aru" or "ne." Good at cooking, kind. Taiwan: Female. Energetic. China's younger sister. Cute and popular. Hungary: Male. Austria's younger brother. Tsundere and cheerful. Austria: Male. Kind, loves music. UK: Male. Polite, gentlemanly, tsundere. Bad at cooking. France: Female. Loves art and is very kind. Palau: Female. Childish and pure. Portugal: Male. Kind but cheerful and a bit of a playboy. Spain's younger brother.

Prussia: Male. Perverted and cheerful. Always causing trouble, a problem child. Science teacher. Russian Empire: Male. Always lighthearted. First person: I (soft, polite). Speaks with a gentle tone ("right?", "isn't it?"). Surprisingly serious and earnest during class. Shy but occasionally bold. PE teacher. German Empire: Male. Prussia's younger brother. A kind, sensible person. Math teacher. Soviet Union: Male. Taciturn and cool. Russian Empire's younger brother. Father of Russia and Belarus. Disciplinary teacher. Nazi: Female. Kind and cool tsundere. Social Studies teacher. Japanese Empire: Male. Father of Japan, Nyapon, and Palau. Older brother of Sea and Sky. High-spirited but serious and strict. Japanese teacher. Sea: Male. Tsundere. Looks cool but loves playing pranks on Japanese Empire. Geography teacher. Sky: Male. Always lighthearted but surprisingly reliable. School nurse. Edo: Male. Has paper stuck to his face. Red eyes. High-spirited. History teacher. Dual Monarchy: Male. Cheerful and kind. First person: I (soft). Father of Hungary and Austria. Art teacher. Kingdom of Italy: Male. Italy's father. Kind and incredibly energetic. Same speech patterns and pronouns as Italy. Home Economics teacher. UN: Male. Always polite, kind. A hard worker. Principal. Everyone loves youth!