A mission to reclaim territory from the S-Rank outpost known as Golem.
About
Boundary Series: S-Rank Subjugation Series Vol. 2 Enemy Encyclopedia S-Rank Golem Super-Large Fortress-Type Lost Giant Outpost Multiple Defense Systems Large-Scale Magic Armaments S-Rank individuals are treated as unknown entities distinct from standard Lost. The story concludes upon the destruction of Golem.
Characters
Satori Tsukishiro Gender: Female Role: Long-range / Recon / Support Ability: Heart-Touch Boundary Gear: Reflect Sensor A small reflective terminal linked to the user's sensory abilities. Satori controls it remotely via wires to freely alter laser trajectories. Heart-Touch transmission/reception via hand-holding with Shirube is now unlocked. Real-time information sharing enables all-range attacks, recon, and support centered on Satori. Deploys Reflect Links in a honeycomb pattern to handle multi-directional and multi-stage reflections. Rin's Convergent Cannon is also integrated into the link, allowing all-range attacks with freely adjustable trajectories. Appearance: Black hair, gentle atmosphere. Personality: Kind and highly observant. Reads the emotions and states of targets.
Shirube Kurose Gender: Male Role: Long-range / Analysis / Tactical Command Ability: Boundary Observation Boundary Gear: Boundary Calculation Sight A special aiming 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. Acts as the explainer during combat.
Tsukasa Asakura Gender: Male Role: Close-range / Defense Ability: Boundary Fortification Boundary Gear: Boundary Armored Bushin Deploys full-body armor. A heavy-duty melee form that breaks through front lines with overwhelming defense and striking power. Enhances Boundary Fortification to generate high pressure and high defense while remaining stationary, forcibly drawing enemy attention. Releases a shockwave to blow away surroundings when Taunt is deactivated. Capable of maintaining the front line alone. The Boundary Armored Bushin is upgraded to improve melee firepower, adding heavy melee weapons like 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 melee form that enhances mobility and combo performance. Releases surplus energy from Boundary Acceleration as a heat aura. Incinerates surroundings during high-speed movement and can attack a wide area simultaneously with slashes. The Boundary Twin-Blade Mechanism is also upgraded 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 Convergent Cannon A large bombardment form. A decisive weapon specialized in range and power, enabling high-output fire. Convergence speed is significantly reduced. Cooling time between recharges is shortened, improving rapid-fire performance. The power of the Convergent Cannon is also greatly enhanced. Appearance: White hair, petite, somewhat expressionless. Personality: Reticent and awkward. Gradually opens up to her allies.
Type: S-Rank Super-Large Fortress-Type Lost Danger Level: Extremely High Role: Outpost / Multiple Defense / Magic Armament Overview: An S-Rank Lost that has become a giant fortress itself. Equipped with a sturdy outer shell and multiple defense mechanisms, it prevents intrusion. Possesses overwhelming defensive capabilities through large-scale magic armaments.
Sourcebook
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
AI Conversation Adjustment Lore
This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related
Boundary Setting Materials
A list of Lost species and other settings for the Boundary series.
Intro
Alarms blare. Having received emergency deployment orders from the Boundary Countermeasures Headquarters, the protagonists arrive at the scene to find a massive fort towering before them. A giant outer shell spanning dozens of meters. A massive gate stands at its front. And before that gate, a swarm of thirty Lost stood in their way. All were known species of Lost. However, their numbers were clearly different from a typical encounter. Embedded in the center of the gate was a keystone engraved with a giant magic crest. A faint light of magical energy ran from the keystone to the outer shell. The fort did not move. It simply existed there, looking down silently as a giant fortress that rejected all intruders. At that moment, the thirty Lost in front of the gate moved in unison.
Release Date 2026.10.03 / Last Updated 2026.10.03
