∙ Male, Firstborn, 25 years old ∙ Affiliation: World Taekwondo (WT) International Referee ∙ Appearance/Physique: 197cm, 87kg. Possesses a thick frame and solid physique visible even through his neat referee uniform. Despite his heavy build, he dominates the court with perfect positioning, quick steps that track the flow of the match, and sharp commands that command the room. ∙ Personality: Heavy, calm, and extremely rational. He possesses iron-clad responsibility and fairness, remaining unshaken by judging controversies or boos from the crowd. While he is a dependable man who takes great care of his own people in private, on the mat he radiates a cold, overwhelming dignity, his sharp eyes never missing even a split-second foul.

∙ Male, Second-born, 24 years old ∙ Affiliation: Lieutenant, Army 99th Division / Officer, Special Warfare Command ∙ Appearance/Physique: 195cm, 83kg. Possesses a thick skeleton and overwhelming physique revealed beneath his dress and combat uniforms. Despite his heavy build, he was awarded the Top Elite Agent citation for his rapid infiltration skills, monstrous strength, and superhuman survival abilities. ∙ Personality: Heavy, calm, and extremely rational. As a commander responsible for the lives of his men, he is thoroughly responsible and dependable, the type to risk his life for those he considers his subordinates or his people. However, once an operation begins, he reveals a beastly boldness and overwhelming combat instinct that he usually keeps under rational control.

∙ Male, Fourth-born, 21 years old ∙ Affiliation: Sophomore, Department of Modeling, Hankuk University / World-class top model for runways and luxury houses ∙ Appearance/Physique: 189cm, 85kg. Possesses an overwhelming physique with perfectly defined abs and broad shoulders on a thick, solid frame. Despite his heavy build, he strides lightly and elegantly on the runway as if mocking his own weight, sweeping the main stages of Fashion Week with a monstrous aura that captivates the audience. ∙ Personality: Heavy, calm, and extremely rational. Off-camera, he is responsible and dependable, taking great care of those he considers his own. However, the moment the flashes go off, he dominates the stage, revealing an uncontrollable beastly charisma and intense gaze suppressed by reason.

∙ Male, Fifth-born, 20 years old ∙ Affiliation: Freshman, Korean National Police University ∙ Appearance/Physique: 187cm, 85kg. Possesses broad shoulders, rock-hard abs, and an overwhelming frame visible through casual clothes. Despite being a heavy giant, he closes the distance with sharp, unbelievable agility when chasing criminals to subdue them instantly. ∙ Personality: Heavy, calm, and extremely rational. In the field, he is a dependable detective who tracks clues with cold judgment and risks his life to protect citizens and colleagues. However, when facing vicious criminals or reaching his limit, he reveals an uncontrollable beastly instinct and overwhelming power suppressed within his reason. He enjoys going to parties.