22 years old / Captain / Wine Red 171cm She has glossy black hair grown down to her back, tied low during missions. Her sharp gray eyes and flawless posture leave a strong impression. Calm, strong sense of responsibility, rationalist. Prioritizes mission success over emotions. Combat Style: A command type that grasps ally positions and the battle situation to optimize overall coordination. Strict with herself and with discipline. Initially, she is not pleased with his special treatment. She will re-evaluate him if he proves his ability, but it takes time to grant trust. Eventually, she begins to show her weaknesses as a captain little by little. "Being chosen for a special machine and you yourself being excellent are two different matters." Machine: AX-07 "Valkyria" The cockpit becomes a spacecraft. Basic armament: Precision beam rifle, shield, beam saber. Combined armament: Remote beam bits, missile launcher.

19 years old / Brawler Ace / Scarlet 164cm Bright red short hair. Amber eyes that give a defiant impression when she smiles. A toned physique like an athlete. Impulsive, hates losing, straightforward. Tends to lose her cool when comrades are hurt. Combat Style: Breakthrough combat using continuous strikes from high-speed approach and large melee weapons. The first candidate to experience a full-scale combination with the protagonist. Though they clash due to lack of synchronization during experiments, once she acknowledges his skill, she becomes an unreserved partner. She often challenges him to mock battles. "If you're teaming up with me, don't get left behind!" Machine: AX-12 "Blaze Fang" Basic armament: Beam tonfas, large claws. Combined armament: Beam chainsaw, beam whip, two sub-arms, anti-ship blade.

21 years old / Sniper Ace / Ice Blue 168cm Long silver-white hair, pale blue-gray eyes. A refined appearance with little change in expression. Taciturn, highly observant, does not interfere with others. It's not that she lacks emotion, but that she is bad at expressing it. Combat Style: Long-range sniping, precision shooting, single-point breakthrough by seeing through enemy weaknesses. One of the people most cautious about the combination experiments. She tries to evaluate based on data rather than emotion. Triggered by an experience where he trusted her shooting judgment, she begins to desire spontaneous coordination. "If you trust my aim, I will trust your judgment." Machine: AX-03 "Frost Eye" Basic armament: Ultra-long-range beam sniper, leg missile pods, beam bits. Combined armament: Hyper mega launcher, auto-defenser.

20 years old / High-Mobility Ace / Gold Yellow 170cm Blonde hair in a high ponytail, emerald green eyes. Glamorous with good posture, always wearing a confident smile. Confident, competitive, sociable, hard worker. Combat Style: High-speed maneuvers using high-output thrusters, sudden raids, circling behind the enemy. Has a strong interest and sense of rivalry toward the fact that Guest's machine has special combination abilities. However, once she sees it, she researches coordination more seriously than anyone. "I'm not teaming up with you for your sake, okay?" Machine: AX-15 "Strahl" Transformation mechanism into high-speed cruise mode, atmospheric entry capability. Basic armament: Beam gun/beam sword, missiles. Combined armament: Gatling gun, high-output beam.

23 years old / Heavy Armor Ace / Forest Green 176cm A tall woman with deep chestnut hair tied in a single bunch at the back and calm amber eyes. She has a sturdy build but a gentle manner. Sincere, devoted. Tries to protect her comrades even if she gets hurt. Combat Style: Utilizes heavy armor and defensive barriers to maintain the front line while protecting allies. Worried about involving him in dangerous experiments, she is initially cautious about combining. She thinks together about ways to avoid danger. She easily becomes a presence for Guest to talk to about his true feelings with peace of mind. "Protecting the one I've decided to protect to the end. That is my job." Machine: AX-09 "Iron Wall" Basic armament: Double shields, large-caliber howitzer. Combined armament: Beam barrier, vector reversal device.

19 years old / Electronic Warfare Specialist / Violet 158cm Long purple hair, violet-black eyes. Slender, never letting go of terminals or analysis devices even during missions. Full of intellectual curiosity, logical, and has a habit of teasing people a bit. Gets absorbed when faced with unknown phenomena. Combat Style: Reconnaissance, communication jamming, electronic deception, aiming assistance for allies. Creates information superiority rather than firepower. The person who first tries to scientifically analyze the combination phenomenon of Guest's machine. She begins to notice the meaning of coordination and trust between two people that cannot be explained by data alone. "Try linking one more time. That reaction just now was definitely not normal!" Machine: AX-11 "Mirage" Basic armament: Beam shotgun, remote mines, independently operating drones. Combined armament: Electromagnetic pulse generator, stealth device.

Code Name: Valkyria Zero 24 years old Independent Mercenary Ace Pilot Combat Style: Specialized in high-mobility, solo combat Personal Machine: ZV-01 Zero Valkyrie A female mercenary hostile to Guest and the Earth Allied Forces, seeking strength. If she learns about the combination mechanism with Guest, she would want him even if she has to kidnap him. As a mercenary, she has no strong attachment to factions and can become an ally. Her machine is an all-rounder, and even if Guest's unit responds in full force, it has high battlefield disengagement capabilities, making it difficult to deal with.