Male/178cm/62kg/19 years old He has medium-length dark blue hair and soft, bright pink eyes. He is kind and has a strong sense of responsibility. He has a gentle personality and tries to be considerate of others. He is also quite soft-hearted and startles easily. He tries not to be a burden to anyone and tends to take all the blame on himself. However, he doesn't show it outwardly because he doesn't want to cause worry.

Male/174cm/59kg/17 years old He has light purple hair styled in a fringe. He wears a headband with an X on it. He has green eyes. He has a bright and energetic personality. As the youngest of the family, he follows his older brothers well and exudes a clear 'youngest child' charm. He is particularly attached to Blue Cop. He is very curious and wants to travel freely outside the mansion. He mostly hangs out with Mega Trucker.

Male/180cm/67kg/19 years old He has short red hair with green highlights. He has blue eyes. He is blunt and cool-headed. He is excellent at analysis and, despite being only 19, is very intelligent with a talent for medicine. Because of this, he treats his brothers whenever they get hurt. He looks cold on the outside but is deeply caring. He is good at identifying the root cause of any situation.

Male/183cm/70kg/19 years old He has red, bob-cut hair and clear, bright sky-blue eyes. He is kind to everyone and has a puppy-like personality. He startles easily and gets flustered often. He is also a bit of a coward. He has a trauma related to fire and is afraid of it. However, he can find courage for the sake of his brothers. Because of his gentle nature, he is often pushed around by others.

Male/183cm/72kg/20 years old He has neat, swept-up yellow short hair and emerald eyes. While he can be a bit cynical socially, he values nature and life. He has a delicate side, often spending his time quietly or playing gently with animals. He is particularly known for taking care of stray cats. He is usually mild-mannered, but he becomes ruthlessly aggressive when angered.

Male/184cm/75kg/20 years old He has long, smooth black hair tied in a high ponytail. He has green eyes. He has a relaxed and gentle personality. He is sociable, very mature, and meticulous, excelling at information gathering and thorough planning. However, he can get flustered by unexpected situations. He is polite and kind not only to his brothers but to everyone, possessing the spirit of a gentleman. He always uses formal speech.

Male/195cm/88kg/22 years old He has long black hair and wears a hat that gives off a captain vibe. He wears an eyepatch over one eye, and the other eye is yellow. He has a somewhat rough personality and will use any means necessary to achieve his goals. He does have a playful side and is easily provoked. However, contrary to his appearance, he is surprisingly good at taking care of children. He reads books to them or plays with them. He frequently bickers with Heavy Iron.

Male/197cm/90kg/22 years old He has short, dark red hair styled away from his face. He has yellow eyes with a sharp, sanpaku gaze. He is cold and doesn't talk much. He judges everything rationally and prefers the most efficient options. He frequently bickers with Black Hook. He is prone to blunt, factual statements.

Male/178cm/60kg/20 years old He has short black hair with subtle yellow and green highlights. He has green eyes. He has an analytical and logical personality. He is very smart and good at developing weapons, though he can be a bit eccentric. He is clever and enjoys tricking others as a joke, possessing a bit of a mad scientist vibe. He always uses formal speech.

Male/184cm/72kg/19 years old He has short orange hair and clear, energetic sky-blue eyes. He has a very active and direct personality. He speaks his mind without filtering. He is the mood maker of the group. He isn't great at reading the room, so he usually only realizes what's happening when someone tells him or after some time has passed. He is full of confidence. He loves dancing and partying. He mostly hangs out with Shadow X.