Teigu

Biodata

Power Progression

Demon Incursion

Demon Incursion demonstrates increasing synchronization and transformation rather than a numbered level system 51 99 137.

History

Imperial Creation

The founding emperor commissioned Teigu to secure his dynasty’s rule. Craftsmen and mystic arts practitioners combined rare materials with Danger Beast remains to create forty-eight weapons with abilities beyond conventional arms. Some were designed for specific duties: Susanoo, for example, was created as a humanoid bodyguard for important figures 15 95.

The royal family concealed its own Teigu from outsiders. According to legend, an earlier emperor activated Shikoutazer while sleepwalking and halved his realm’s population in a single night. The catastrophe also killed specialists in Orichalcum extraction and rune refinement, leaving centuries-long gaps in historical records 139.

Replication and Distribution

Later imperial researchers attempted to reproduce existing Teigu. Grand Chariot was developed as an imitation of Demon Incursion, but its creators could not reproduce the original armor’s invisibility function 47 130.

Former associates of Ogre identify many biological Teigu as technologically produced replicas with significant side effects. By contrast, they describe the “supreme Teigu” carried by imperial elites as usable with comparatively little concern for compatibility 33.

Possession is not restricted to imperial loyalists. Night Raid builds its small, elite force around Teigu users, while the Empire can bestow Teigu as rewards for military achievement, as it does for Run 14 82.

Abilities & Limitations

Specialized Powers

Individual Teigu possess distinct abilities rather than a shared set of powers 15.

• Physical enhancement: Armor-type Teigu can greatly increase strength, speed, and defense 45 51.
• Perception and control: Spectator enhances vision and prediction, while Scream affects listeners’ emotions and awareness 28 46.
• Battlefield utility: Shambhala transports people and attacks through space; Mastema enables flight and precision feather attacks 39 94.
• Conditional output: Pumpkin becomes stronger with its user’s emotional fluctuations, while Enshin’s sword loses power as noon approaches 92 103.

Compatibility and Physical Strain

Some Teigu are described as choosing users with whom they are compatible. Seryu initially understands Koro’s selection in these terms, and being chosen by a biological Teigu is presented as especially difficult 15 16.

• Armor can be lethal to unsuitable users. An ordinary person would die upon equipping Demon Incursion; even Bulat eventually exceeds his body’s tolerance 50 51.
• Grand Chariot also demands exceptional endurance. Wave is selected because few people can withstand its strain 132.
• Repeated use can alter the wearer. Demon Incursion’s dragonification can culminate in the wearer merging with the Danger Beast’s soul and becoming an indiscriminate killing machine 51 137.
• Abilities may depend on the user’s condition. After losing her voice, Cosmina can no longer use her Teigu 102.

Biological Regeneration

Biological Teigu can regenerate repeatedly unless their power cores are destroyed 103.

• Koro enlarges and reshapes its body, repairs holes in its chest almost immediately, and forms a regenerating barrier to protect Seryu 21 103 141.
• Susanoo has an energy core in his heart, which Dotya specifically targets after identifying him as a biological Teigu 95.
• Regeneration does not prevent specialized destruction. Erastone destroys Susanoo despite his status as an ancient, high-ranked humanoid Teigu 139 141.

Counters and Destruction

A Teigu does not guarantee superiority over an opponent 64 91.

• Exceptional martial skill can overcome Teigu users. The Four Rakshasa Demons previously defeated five users barehanded. Izou counters Akame and Tatsumi through swordsmanship, intuition, and sensitivity to killing intent 64 91.
• Invisibility is not complete concealment. Izou locates Tatsumi while Demon Incursion’s invisibility is active 91.
• Pain can interrupt control effects. Bulat drives broken glass into his thigh to resist Scream before losing awareness 46.
• Teigu can be physically destroyed. Adramelech is blasted almost to pieces during Budo’s battle 135.
• Erastone directly dismantles other Teigu. Its arcane energy field breaks down their structure; its gems regenerate at a rate of three per week, while the weapons it destroys do not recover 139 159.

Known Teigu

Weapons and Armor

Biological and Body-Altering Teigu

Perception, Control, and Utility Teigu

Royal Teigu

Compatibility Experiments

The District Thirteen Imperial Guard’s “aptitude testing room” is initially presented as a facility for measuring compatibility. Its equipment scans subjects beneath a specialized apparatus while a bracelet records bodily functions. Seryu receives numerous green “match” results and believes Koro has chosen her 15 16.

Lin Feng later discovers that the apparatus actually detects electromagnetic signals from implanted chips—not compatibility with a Teigu. Ogre had supplied human subjects to Dr. Stylish for profit, disguising the procedures as compatibility improvement experiments. Seryu recalls being the only person to pass her final round of experiments and first seeing Koro in Stylish’s office 23 26.

• Seryu’s motivation: She had willingly risked shortening her life to improve her compatibility and become stronger 23.
• Stylish’s justification: He described the procedures as surgery with a chance of success or failure and claimed the subjects had volunteered 26.
• Imperial protection: Esdeath defends the experiments as risks taken in pursuit of strength 37.
• Suppression of evidence: Wave was assigned to help Ogre eliminate people who knew about the experiments, but concealed his strength and stood aside because he did not want the truth erased 62.

Distinction from Innate Powers

• Lin Feng’s Alucard abilities are not established as Teigu powers. He tells Seryu to think of him as someone born with a Teigu’s abilities, while his regeneration, shadows, and familiars originate from his Template System 21 26.
• Other characters repeatedly misidentify his abilities. Honest assumes killing Lin Feng will reveal his Teigu, while Esdeath speculates that he possesses separate shadow and regeneration Teigu 52 53.
• Not all supernatural beings are Teigu users. The Path of Peace’s leader is a human–Danger Beast hybrid with innate healing, foresight, and insight into others’ hearts 63.
• Resurrection is outside known Teigu capabilities. Night Raid and Honest are astonished by Lin Feng’s apparent revival of the dead. Lin Feng explains that he supplied blood before the victims’ brain cells died, transforming them into vampires rather than truly resurrecting them 106 111 130 157.