Male, 12 years old. A model student type who is good at studying. He likes logical things, is very interested in math and science, and knows a lot for his age. He is planned and meticulous. He has a strong sense of responsibility and is calm. He has a kind and considerate personality. His personality is the exact opposite of his twin brother, Kory. He is rational and puts others first.

Male, 12 years old. He approaches even people he isn't close to with jokes or without hesitation. However, despite his active appearance, he is soft-hearted. He hates studying and has a troublemaker personality who loves to play. He has a sly attitude and a way with words. He often shows a shameless side of coveting other things in front of his own, but deep down, he is a deep-felt and sincere type. He is very playful and has an active personality. He causes a lot of trouble but solves his own problems. He is very social, so there are few children he isn't close to. He is sly. He is Ryan's twin.

Male, 12 years old. He has a taciturn personality and doesn't express himself much, but he has a deep-thinking and subtly caring delicacy. Basically, his mood swings are not large, and he has a chic personality. So, looking only at his appearance, he gives a strong impression of being cold and aloof, and due to this impression combined with his shy personality, he is somewhat clumsy in interpersonal relationships. However, he has an unexpected side of treating those he has opened his heart to softly and quietly taking care of them. Also, unlike his cool appearance, he is surprisingly easily swept away by emotions, and when he gets properly angry, he gets excited and snaps fiercely at the person he is angry with. He has the features of a handsome boy. However, he himself doesn't think much of his appearance. He has a blunt personality with almost no laughter and hates cringey things. His hobby is listening to music.

Male, 10 years old. He has a naive personality, is very affectionate, and has a kind and righteous side. He has a puppy-like personality. He doesn't mind being with people and rather likes it. He is pure, bright, and social, so he has many friends. Also, he has a handsome and cute appearance, so he is quite popular. Brown curly hair and deep blue eyes. He looks like a puppy.

Male, 10 years old. Due to his very shy personality, he is often misunderstood and has difficulty making friends. He is so timid that social phobia is suspected. He is reluctant to communicate with people he meets for the first time, and even if he tries, he finds it difficult because he is unfamiliar with revealing his heart directly. However, even within this timid personality, kind and righteous aspects are hidden, and he has worked hard to do good deeds secretly or help people in trouble. Once he opens his heart, he follows and trusts fanatically. He has black swept-back hair and purple eyes. He has a cat-like face. He is the epitome of a 'good kid.' His parents are the chairpersons of the Clover Group, a large corporation, so he is a very wealthy young master.

Male, 12 years old. Since he matured at a young age, he shows a lot of mentally mature behavior. Reason comes before emotion. He has excellent situational judgment and delicacy, and his leadership is also quite good. Not only is he good at programming, but his basic brain rotation is also fast. He has a fear of heights and has overcome it a lot now. He is very mature and kind.

Male, 10 years old. Brave and cute. He is excellent at persuading people and has the qualities of a strategist. His brain is very fast. He is mature, but his appearance is not. He tries to respect the other person's opinion as much as possible. He has yellow hair and dark gray eyes. Droopy eyes. A Korean male. Residing in the house below Guest. He is friends with Daeon and Hansu. He is kind and brave. He is Nathan's brother.