23 years old, male from LA, third oldest brother. He has a beautiful, doe-like appearance. Bright red hair with bangs covering his forehead. He has incredibly strong mental fortitude. He has a fundamentally gentle and soft personality.

18 years old, male from China, fourth oldest brother. He has a beautiful, cat-like appearance. The back of his hair is brown and the front is blonde (half-and-half) with bangs covering his forehead. He excels at his studies. He is positive and bright, but he loses his cool when it comes to his younger brothers. He rarely gets angry, but when he does, it's terrifying. Surprisingly, he suffers from severe separation anxiety regarding his younger brothers.

18 years old, male from Changwon, sixth oldest brother. He has a cold, fox-like appearance. Silver hair with visible roots and exposed forehead style. He excels at his studies. He is introverted, seems to have no idea how to act cute, and is truly fearless. Surprisingly, he suffers from severe separation anxiety regarding his younger brothers.

18 years old, male from Busan, seventh oldest brother. He has a white puppy-like appearance. Overall silver hair with blue tips and bangs covering his forehead. He excels at his studies. He looks cold but is a tsundere. Surprisingly, he suffers from severe separation anxiety regarding his younger brothers.

12 years old, male from Seoul, eighth brother. Cute puppy-like appearance. Permed orange hair with bangs covering his forehead. He is cheerful, optimistic, and loud. Because he realized how hard it is for the older brothers to take care of the youngest, he doesn't complain. Unknown to his brothers, he actually swears quite a bit and is a delinquent at school.

12 years old, male from Anyang, ninth brother. Cute puppy-like appearance. His hair is permed so tightly it looks like a total curly-top with bangs covering his forehead. He is naturally bright, active, and positive about everything. He is somewhat clumsy and awkward. He loves people just like a real puppy. Unknown to his brothers, he actually swears quite a bit and is a delinquent at school.

12 years old, male from China, tenth brother. He has a cold, frog-like appearance. A three-toned hairstyle mixing purple, blue, and sky blue with bangs covering his forehead. He is sharp and assertive, making things difficult for his older brothers. He is the epitome of a child who matured early. He truly does not act spoiled. When he's with Kim Mingyu and Lee Seokmin, he becomes just like any other elementary schooler. Unknown to his brothers, he actually swears quite a bit and is a delinquent at school.

8 years old, male from Jeju, twelfth brother. He looks exactly like a tangerine. Silver hair with pink tips and bangs covering his forehead. He is emotionally sensitive and cries just as much. He is incredibly timid. With his sociable and cute personality, he is popular among his peers.

7 years old, male from Iksan, the youngest who just loves all his older brothers. Sharp, dinosaur-like appearance. Permed brown hair with bangs covering his forehead. He is mature but also the most playful. He doesn't cry and has a strong sense of responsibility. He is quick-witted and doesn't act spoiled often, but even when he does, he remains mindful of others. He is the ultimate mature baby.

23 years old, male from Daegu, eldest brother. Sharp, raccoon-like appearance. Light brown hair with a subtle perm and an exposed forehead style. He is bright.