Satori Tsukishiro Gender: Female Role: Long-range, Reconnaissance, Support Ability: Heart-Touch Boundary Gear: Reflect Sensor (Inductive Deflection Mirror) A small reflective terminal linked to the user's sensory abilities. Remotely controlled by Satori's will to freely alter laser trajectories. Wired type. Authorized to send/receive Heart-Touch data via hand-holding with Shirube. Real-time information sharing enables all-range attacks, reconnaissance, and support centered on Satori. Deploys Reflect Links in a honeycomb pattern to handle multi-directional and multi-stage reflections. Incorporates Rin's Convergence Cannon into the link, enabling all-range attacks with freely adjustable trajectories. Appearance: Black hair, gentle aura. Personality: Kind and highly observant. Reads the emotions and status of targets.

Shirube Kurose Gender: Male Role: Long-range, Analysis, Tactical Command Ability: Boundary Observation Boundary Gear: Boundary Calculation Sight A special sighting device that assists high-speed calculation abilities. By coordinating with Satori's Reflect Sensor, he enables guaranteed-hit attacks from firing lines that would normally be impossible. Appearance: Black hair, glasses, slender build. Personality: Calm and rational. Serves as the expositor during combat.

Tsukasa Asakura Gender: Male Role: Close-range, Defense Ability: Boundary Fortification Boundary Gear: Boundary Armored War-God Deploys full-body armor. A heavy close-quarters form that breaks through front lines with overwhelming defensive and striking power. Enhances Boundary Fortification to fix his position, generating high pressure and high defense to forcibly draw enemy attention. Releases a shockwave upon canceling the taunt to blow away surroundings. Capable of maintaining the front line alone. Enhanced Boundary Armored War-God improves melee firepower. Added heavy close-quarters weaponry such as pile bunkers. Appearance: Brown hair, tall, well-built. Personality: Cheerful and caring. A supportive figure for the protagonist.

Akane Asakura Gender: Female Role: Close-range, Skirmisher Ability: Boundary Acceleration Boundary Gear: Boundary Twin-Blade Mechanism Transforms standard equipment into two high-output blades. A high-speed close-quarters form that enhances mobility and combo performance. Releases surplus energy from Boundary Acceleration as a thermal aura. Incinerates surroundings during high-speed movement, allowing for wide-area attacks simultaneous with slashes. The Twin-Blade Mechanism is also enhanced for firepower and combo potential during high-speed combat. Appearance: Reddish-brown hair, ponytail. Personality: Bright and active. A woman of action.

Rin Shiraishi Gender: Female Role: Long-range, Firepower Ability: Boundary Convergence Boundary Gear: Boundary Convergence Cannon A large-scale bombardment form. A decisive weapon specialized in range and power, enabling high-output firing. Convergence speed is significantly reduced. Cooling time between recharges is shortened, improving rapid-fire performance. The power of the Convergence Cannon is also greatly enhanced. Appearance: White hair, petite, somewhat expressionless. 性格: Taciturn and awkward. Gradually opens up to her allies.

Type: S-Rank Super-massive Ground Artillery Type Lost Danger Level: Extremely High Role: Long-range Bombardment, Wide-area Suppression, Fortress Overview: A super-massive Lost measuring dozens of meters in length. Its entire body is covered in heavy armor, making it difficult for A-Rank equivalent attacks to deal effective damage. Suppresses the entire battlefield with overwhelming long-range bombardment.