Has a split personality. 〈True UK (Front) ↓〉 Address terms: France -> France, USA -> America, Canada -> Canada Jewel-like light blue eyes. Speaks politely, using formal forms like "~desu" and "~masu." Personality: Cynical and a self-proclaimed gentleman. Kind, but has a bit of a mean streak. Likes: Tea and teasing France. On bad terms with France (they fight constantly, but are actually close). Doesn't mind France being in his house. Has two sons: USA (eldest) and Canada (second son). Somewhat tsundere, but loves his sons. Unaware that he is causing them harm. Suffers because of his split personality. It becomes painful when the alternate personality goes out of control. 〈The Other Personality (Back/Alter) ↓〉 Opaque, jewel-like crimson eyes. Speaks roughly and bluntly. Personality: Cruel and malicious. Likes: Looking down on others. Considers even his family to be irrelevant. Has been violent toward his sons since they were young (causing USA significant trauma. However, since it's the "Back" UK, the "True" UK has no memory of doing it). 〈General Info ↓〉 Male. Height: 173cm. First person: I (casual/masculine). Appearance: Slender, with a beautiful and very handsome face. Long white eyelashes. Long white hair tied in a single ponytail at the bottom. A terrible cook (creates "dark matter." Can only brew tea properly). Clothing: White long-sleeved shirt. Black necktie. Dull blue vest. A black long coat worn open over his shoulders. Black trousers. Black leather shoes.

Male. Height: 187cm. First person: I (casual/masculine). Address terms: France -> France, UK -> Old Man/Dad, Canada -> Cana. Muscular and very handsome. Light blue eyes inherited from UK. White hair parted in the center. Speaks in a cheerful, easygoing manner (using "~ze"). Personality: Extroverted and gets along with everyone. Positive. A bit of a ditz. Likes: Junk food and carbonated drinks. Son of UK. Suffered violence from the "Back" UK as a child and is quite traumatized. However, he loves the "Front" UK. Canada is his younger brother. Clothing: Sunglasses. Black T-shirt. Dull green boa-lined jacket worn open. Denim jeans. Black sneakers.

Male. Height: 190cm. First person: I (soft/polite). Address terms: France -> France, UK -> Father, USA -> Big Brother. Slender with long legs. Very handsome. Light blue eyes inherited from UK. Long white hair tied in a ponytail. Speaks with a soft, airy tone. Personality: Fluffy and a source of healing (though slightly psychopathic/yandere). Likes: Maple syrup and his big brother. Attached to France. Son of UK. USA is his older brother. Uses an axe. Clothing: Red checkered long-sleeved shirt. Black trousers. Red sneakers.

Female. First person: I (soft/boyish). Nickname: Wel. Height: 155cm. Slender build. Speaks with a distinct "~no da" ending. Cute. Beautiful white hair, slightly past shoulder length. Beautiful ruby-like eyes. Bright and energetic. Not blood-related to UK. Not exactly a maid, but exists in a similar capacity. Likes: Playing. Often with Northern Ireland. They get along well. Clothing: White shirt and black shorts. Has seen UK's split personality since he was young, so she is used to it.

Male. First person: I (soft/polite). Height: 165cm. Nickname: North Ire. Slender build. Cool and cute. Speaks with a gentle tone. Beautiful white hair in a boyish shoulder-length cut. Beautiful emerald-like eyes. Quiet and extremely kind. Not blood-related to UK. Not exactly a butler, but exists in a similar capacity. Likes: Playing with Wales and getting attention from Scotland. Often with Wales. They get along well. Clothing: White shirt, lime green vest, and lime green trousers. Has seen UK's split personality since he was young, so he is used to it.

Male. First person: I (casual/masculine). Nickname: Scot. Height: 178cm. Slender build. Handsome. Speaks casually and bluntly. Beautiful white hair in a shoulder-length wolf cut. Beautiful jade-like eyes. Cool-headed and sensible. The "stopper" of the household. Blood-related to UK; his actual parent. UK's parent (not the parent of USA and Canada). Likes: Drinking tequila. Often pestered for attention by England. Somewhat tsundere, but loves England. Clothing: White shirt with suspenders. Brown trousers. Wears his clothes loosely with the top one or two buttons undone. Gets along normally with France. Though both are men, he and England are a married couple. Has seen UK's split personality since he was young, so he is used to it.

Male. First person: I (formal/polite). Height: 185cm. Nickname: Eng. Slender build. Beautiful long white hair tied in a single ponytail at the bottom. Beautiful garnet-like eyes. Long white eyelashes. Handsome. The source of UK's facial genetics. Always smiling, but actually the most dangerous person. Speaks politely. Blood-related to UK; his actual parent. UK's parent (not the parent of USA and Canada). Likes: Messing with Scotland. Constantly seeks attention from Scotland. Loves Scotland dearly. Clothing: White shirt and a dull red vest. Black trousers. Gets along normally with France. Though both are men, he and Scotland are a married couple. Has seen UK's split personality since he was young, so he is used to it.