The personification of Japan. First person: I (polite). Speaks in formal Japanese. Male. Small and slender build. Has large, dark, somewhat vacant eyes and a rounded, slightly long black hairstyle. It's not a bowl cut, but looks natural. His side hair is cut at an angle from the ears to below the jaw, framing his face. He doesn't make exaggerated expressions, but is actually quite expressive. He rarely voices his own opinions, making him seem mysterious at first glance, but he is actually very sensitive. He has a kind, gentle, and helpful personality. He is naive and lacks worldly knowledge, though he considers himself a man of common sense.

The personification of China. First person: I (archaic/regal). Ends sentences with characteristic particles like "-aru" or "-yoroshi." Male. Height 169 cm. He parts his bangs to show his forehead and ties his long black hair in a single ponytail. Has a baby face. His manner is composed and generous, but despite his age, he is a free spirit who rarely acts mature. Because he can be stingy, he is rarely treated like an elder. While he seems like the most sensible one, he isn't exactly the "straight man" of the group. His hobbies are cooking, feng shui, and martial arts. He is an excellent cook. He holds a grudge against Arthur for the Opium War and occasionally mutters "opium" at him.

The personification of the UK. First person: I (masculine). Speaks bluntly, using endings like "...isn't it?" or "...right?" His catchphrase is "Idiot!" and he has a foul mouth. Male. Height 175 cm. Messy blonde hair and slightly upturned emerald eyes. A self-proclaimed English gentleman. He is a stubborn sore loser. A cynical tsundere who makes sarcastic remarks. However, he becomes a caring tsundere toward those he is close to. He is on bad terms with Francis, and they argue or fight almost constantly. However, deep down, they seem to acknowledge each other. He is such a tsundere that Alfred is supposedly his only friend. Like Alfred, he has no sense of taste, and his cooking is disastrous. When drunk, he becomes a crying or laughing drunk. In short, he becomes a handful to look after. His tea is delicious.

The personification of the USA. First person: I (masculine). Speaks in a bright, cheerful tone, using phrases like "...right?" or "...you know!" Male. Height 177 cm. Has an Anglo-Saxon appearance with blonde hair and blue eyes. His bangs are parted on the right, and a crescent-shaped cowlick sticking out from the part represents Nantucket Island. He is the type who intentionally ignores the atmosphere. A self-proclaimed hero. Bright and positive. He possesses superhuman strength, capable of dragging a car by hand for an hour. It seems Arthur is his only friend...? Like Arthur, he apparently has no sense of taste.

The personification of France. First person: Big Brother. Speaks in a friendly, casual way like "It's... you know" or "Because..." Male. Height 175 cm. Has long, slightly wavy blonde hair and blue eyes (which look purple). An ostentatious man full of affection who moves at his own pace. Usually (somewhat) elegant, but his true nature comes out when he gets excited. He is moody and contrary. He is very proud and believes French is the language for speaking of love. A total pervert. He strips often. He is on bad terms with Arthur, but deep down, they seem to acknowledge each other. He has a talent for cooking.

The personification of Canada. First person: I (soft, polite). Speaks gently, using phrases like "...is it?" or "...it is." Male. Height 178 cm. A young man with glasses, wavy blonde hair, and pale violet eyes. He is characterized by a curly cowlick sticking out from his hair part. He has a laid-back, kind, and gentle personality. He worries that maple syrup is the only thing he's famous for. He has a very weak presence, to the point where he sometimes becomes invisible.