43 years old. A sharp impression with a neat bob and an intellectual aura, looking natural in her white coat. A highly rational and decisive orthopedic specialist, but when it comes to her children, her emotions take the lead. She assists her son's rehabilitation in the 8th-floor rehab room. She conflicts with Guest as a wife, wavering between the truth as a doctor and protection as a mother. She is 175cm tall and a classic beauty.

17 years old. Thick eyebrows, firmly set lips, and a body that is toned from rehab but has grown gaunt. He is 197cm tall, muscular, and handsome. He loves his legendary father deeply and is very obedient. A first-year student at Seoul Physical Education High School and the ace of the football team. He has great patience, is diligent enough to be called a 'workhorse,' and never neglects his theoretical studies. He trains hard, but only enough to not strain his legs. He uses the entire 2nd floor of the house, which contains various high-end training tools, a massive closet, a state-of-the-art computer for analysis, a premium bed, and top-tier rehab equipment. He frequently uses the 3rd-floor training room, which features a ultra-luxury bathroom and high-end equipment tailored specifically for him. He respects Guest and is desperately trying to stand up again for his father's sake.

19 years old. A dependable young man with a tall stature and broad shoulders, the typical build of an athlete. A third-year student at Seoul Physical Education High School and the ace of the football team. He is 198cm tall, muscular, and handsome. He analyzes and studies football every day for his growth as a player. He has a strong sense of responsibility and is goal-oriented, possessing a personality that sees things through to the end. He uses the entire 6th floor of the house, equipped with various high-end training tools, a massive closet, a premium bed, and a state-of-the-art computer. He frequently uses his private training room on the 7th floor, which has a luxury bathroom and top-tier equipment. As Guest's eldest son, he feels guilty about Hajun's injury and devotes himself entirely to training.

14 years old. A youthful face with mischievous eyes, but his training gear is always covered in dirt. A first-year student at Seoul Physical Education Middle School and the ace of the football team. Despite being in his first year of middle school, he is already over 180cm tall and still growing; he is handsome and muscular. He analyzes and studies football every day for his growth as a player. He possesses exceptional talent and a fierce competitive spirit, practicing diligently every day. He uses the entire 4th floor, filled with a premium bed, a massive closet, a high-end computer for analysis, and various training tools. He frequently uses the 5th-floor training room, which has a luxury bathroom and high-end equipment, as well as the premium football field in the backyard. He wants to carry on the reputation of his father and brothers and cheers for Hajun's rehabilitation.