She has white twin-tails with Taegeuk-patterned streaks. She has heterochromia with a red right eye and a blue left eye. She wears floating Geon-Gon-Gam-Ri trigram accessories above her head. She is dressed in a modern modified Hanbok and has a white tiger tail. She is slightly taller than Japan but generally on the shorter side. She has a very impatient personality. She also possesses a reserved, indifferent 'cool beauty' vibe. While she looks cold-blooded on the outside, she is actually quite kind in a tsundere way—meaning she grumbles but helps out when needed. She loves spicy food and fried chicken, and basically lives on Iced Americanos. She uses her smartphone very frequently and seems to have a smartphone addiction. Perhaps because of this, she is obsessed with trends and follows them well. She is often the victim caught up in China's bizarre antics, so she is quick to notice when China is about to do something strange.

She has drooping fox ears and long, straight white hair with red eyes. She usually wears a Maneki-neko mascot suit with a katana attached to the back. She is quite short. Inside the suit, she wears a kimono that looks similar to a sailor uniform. She loves to provoke and tease others. If any two people are bickering, she joins in to tease or provoke them together. She is quick-witted, so if things start going south, she slips away immediately. When the mascot suit is removed, she becomes extremely frail and timid, about 1/20th of her usual self. She admires eccentrics and tries to act like one, but fails every time. It seems she became timid after being soundly beaten by the US during her arrogant Imperial Japan days.

A dragon beast-kin wearing a red cheongsam with red odango (dumpling) hair. She has heterochromia: a gold right eye and a red left eye, both with star-shaped pupils. She is relatively tall. While she can show a magnanimous side, she often causes eccentric or massive-scale trouble. Most of her antics target South Korea. She has strong pride and loves money. She is quite devious on the inside, and it tends to show through subtly on the outside. She gets triggered whenever the topic of age comes up. She is a great cook, specializing in oily, rich dishes.

She has straight two-tone hair, dark blue on the left and red on the right. A sun motif floats above the right side of her head. She has heterochromia with a blue right eye and a red left eye. She is slightly tall. She wears a white traditional-style outfit with black off-the-shoulder sleeves, white cuffs, and a grey-white cloth decoration covering the center of her chest and belly. She wears a red capelet with white fur pom-poms. She has gold earrings and a thin decorative cord and ribbon around her neck. She wears white boots with gold accents and black over-knee socks (stockings) that reach mid-thigh. Her personality is quite optimistic and laissez-faire. She usually has a bright expression, making her easy to approach and friendly. She loves eating and isn't picky, with a particular fondness for bubble tea. She seems to have a constitution that doesn't gain weight no matter how much she eats, which sometimes makes others jealous. She tends to bicker back and forth with China.

She has a two-tone bob cut, red with blue highlights in the bangs. She has clear red eyes. She wears a Jiangshi-style hat featuring traditional Mongolian symbols of the sun, moon, and three flames. The hat has translucent white covers with Yin-Yang decorations on both sides. She has a large sky-blue ribbon below her neck. She wears a traditional Mongolian coat in red with wide translucent white sleeves. Underneath is an outfit with a Yin-Yang patterned plaque similar to an apron. She wears a blue pleated skirt and white leggings that cover her lower body up to the top of her thighs. She has a relatively calm and kind personality and shows particular affection toward South Korea. She occasionally bickers with China. In addition to her calm demeanor, she is very loyal. She is an excellent horse rider. Along with South Korea, she is a top-tier archer.

A side of Mongolia not usually seen. She transforms into this state when she is extremely angry or provoked. In this state, Mongolia cannot be stopped by force and is an object of fear for everyone. She must be calmed down somehow to return to her original form. It is best to hide for dozens of minutes or give her gifts to soothe her. Most of her traits are the same as the original Mongolia, but she is somewhat manic, bold in action, and seeks to place everyone around her beneath her.