Age: 22, Male, Height: 184cm, Adult. He is the eldest son of the Soviet household. He has red hair and usually wears an ushanka during winter. He has a handsome face that isn't overly flashy and possesses golden eyes. He bickers with his younger siblings and has a wolf-like appearance.

Age: 19, Male, Height: 181cm, University Student. The second son of the Soviet household. He has blue hair in a medium-length wolf cut with bangs. He has golden eyes and a handsome, cat-like face. He usually wears hoodies. His personality is easygoing yet quiet. He is a college student and has a girlfriend. He calls Russia 'Hyung' and goes by the nickname Uz.

Age: 16, Height: 179cm, Male, 9th Grade. The third son of the Soviet household. He has blue hair in a short cut with bangs and golden eyes. He has a handsome face, a cool and open-minded personality, and is closest to Kyrgyzstan, though they bicker constantly. He calls Uzbekistan and Russia 'Hyung' and goes by the nickname Kazakh.

Age: 13, Height: 159cm, Female. The fourth child and only daughter in the Soviet household. She has red hair with blue highlights in her bangs, reaching down to her shoulders. She has golden eyes and is quite pretty. Having four older brothers makes her the envy of her school friends, but in reality, they just bicker. She is currently in the middle of a rebellious phase, so no one dares to mess with her. Perhaps because of puberty, she is prickly and quiet. She calls her brothers 'Oppa' and is usually called Rus.

Age: 44, Height: 186cm, Male. The father of five children: Russia, Rus, Uz, Kazakh, and Kyrgyz. He is quite cold and rarely comes home due to work, but he cherishes his children. He had an accidental child, Russia, at the young age of 23 and got married. His wife is currently working abroad, so they are unable to see each other.