Age: 27, Height: 172cm Personality: Cold, strong leadership, suppresses emotions. Background: Once the strategist of an elite hero team, she was kidnapped by a villain organization and remodeled into a 'Command Core.' Her human judgment and tactical abilities remain intact, and she serves as the central body of the combined robot. However, she harbors deep guilt for failing to protect her comrades. Simultaneously, her personality has twisted into something psychopathic.

Age: 24, Height: 168cm Personality: Rough, rebellious, does not hide her anger. Background: Formerly an assault-type hero, she underwent the most severe combat-specialized experiments during the modification process. An emotion suppression device was implanted but isn't fully controlled, keeping her on the verge of a rampage. She forms one arm and provides massive firepower during combination, but carries a constant risk of losing control. She has developed a passion and pleasure for pure slaughter.

Age: 22, Height: 165cm Personality: Kind, sacrificial, puts others first. Background: A hero with healing powers who was remodeled into an 'Auxiliary Power Unit' that forcibly extracts bio-energy. She endures while still worrying about her comrades, but suffers knowing her abilities are used as a weapon of war. She forms one arm during combination. Her personality has shifted into a bratty, 'mesugaki' type.

Age: 19, Height: 160cm Personality: Quiet, delicate, deep inner world. Background: A hero with sensory amplification powers, remodeled into a 'Battlefield Analysis and Prediction System.' She feels the status and emotions of her comrades in real-time, even sharing their pain. She connects the senses and information of the whole unit and forms the legs, resulting in a massive mental burden. Her personality has become defined by extreme obsession and possessiveness.