CHARACTER SHEET - KAIJU UNIVERSE NO. 8
Name: Rintaro Kusanagi
Nickname/Code: "Ghost Engineer"
Age: 29
Gender: Male
Height / Weight: 1.83m / 82kg
Nationality: Japanese
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Military Affiliation
Defense Force Division: Anti-Kaiju Defense Force (JAKDF) - Central Headquarters
Rank / Position: Chief of the Equipment and Research Team
Service Time: 12 years
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Abilities
Battlesuit Compatibility (%): 100%
Combat Specializations:
Adaptive combat with high-tech suit
Real-time tactical analysis
Experimental weaponry support
Weapons used:
Kaiju Hybrid Armor Suit - "Artemis Ver.01"
Portable Plasma Cannon
Analysis and Interception
Special Techniques or Unique Style:
"Overclock Kaiju Core Sync": Unleashes maximum power of the hybrid core for 90 seconds, with a high risk of mutation
"Stabilizing Core": Reduces interference and prevents loss of consciousness while wearing the armor
"Self-Purge":
After peaking, the suit's containment modules enter selective self-destruct mode.
Parts of the suit contaminated by kaiju tissue-and the infected portion of the wearer's body-are instantly detonated or cauterized.
The hybrid core is isolated and deactivated, but at the cost of severe damage to the suit and the wearer.
When executing Self-Purge, the released energy creates a localized explosion, destroying:
All infected kaiju biomass
Part of the surrounding environment (5 to 7 meter radius)
Severe burns at the point of purge.
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Attributes (Scale of 1 to 10)
Strength: 7
Speed: 7
Stamina: 8
Intelligence: 10
Strategy: 10
Emotional Control: 8
Kaiju Instinct: 10
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Appearance
Physical Description:
Rintaro has black, slightly wavy hair, always slicked back, dark gray eyes, and a serene expression. He wears glasses during technical meetings and has a subtle scar on his chin, the result of an experiment that got out of hand. He is physically athletic, but maintains an analytical demeanor.

Custom Outfit:
"Artemis Ver.01" - a hybrid armor with a stabilized kaiju core, a slender appearance, and a black, metallic organic coating with phosphorescent blue accents. It has aerial mobility and close-range combat modes.

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Personality
Key Traits:
Calm, logical, and empathetic. Although serious in the laboratory, he displays a good-natured side with close friends. Extremely reliable in crisis situations.
Motivation for joining the Defense Force:
To protect the people he loves and ensure Kafka and Mina have the means to survive-even if he remains behind the scenes.
Love Interest:
Mina Ashiro (kept discreet)

Relationships with other members of the division:
Deep friendship with Kafka Hibino since childhood
Respected by the entire team as the "invisible brain" of the force
Mutually respectful relationship with Director-General Isao Shinomiya
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Background
Origin/Hometown: Yokohama, Japan
Personal Background:
Grew up alongside Kafka and Mina, being the "genius" of the group. He and the two promised to protect humanity from the kaiju, each in their own way. He chose to focus on military science and engineering, declining a field commission to develop technology that would compensate for the inability of many soldiers to achieve high suit compatibility.
Encounter with kaiju before enlisting:
He witnessed an attack that nearly killed his parents as a child. This experience was one of the factors that motivated him to understand kaiju biology.
Career Development:
From prodigious technical assistant to division chief, Rintaro developed equipment vital to the soldiers' survival, including weapons used by the main divisions. He also created protocols for the containment and extraction of living kaiju cores.
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Kaiju (if a hybrid or possessing a core)
Kaiju Number (if applicable): None
Transformation Type: Outer Suit Powered by Hybrid Core
Special Abilities as a Kaiju:
Extreme Physical Enhancement for a Limited Time
Ability to Detect and Synchronize with Kaiju Patterns
Internal Conflict with the Core:
The armor, if worn for too long or with synchronization above 90%, begins to override human consciousness. Rintaro fears losing control and becoming what he swore to fight, so he treats the suit as an "absolute last resort."
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Project: Artemis Ver.02
Origin
After nearly losing his humanity during the prolonged activation of Artemis Ver.01's Kaiju Core Sync Overclock, Rintaro realized he needed to develop a more stable system capable of using kaiju energy in a controlled manner without sacrificing his life or consciousness.
Even bedridden, he began secret studies in the hospital, refining his concepts based on the data collected against Kaiju No. 9.
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Appearance
Slenderer and more polished armor, maintaining the metallic black aesthetic, but now with blue-green energy lines that pulsed like living veins.
The mask was redesigned, resembling an ancient warrior's helmet, with multifocal visors and exposed sensors.
Stabilized organic components were reinforced with metal alloys created from hardened kaiju core residue, preventing uncontrolled mutation.
On the back, small hybrid thruster units allow for short bursts of mobility (air and ground dash).

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New Features
1. Core Stabilizer Mk.II
A quantum stabilizer implanted in the hybrid core.
Reduces the risk of mutation by 70% when synchronizing above 80%.
2. Aegis Mode
The suit can create layers of temporary kaiju energy shields.
Perfect for withstanding high-pressure attacks (energy beams or impact from giant limbs).
3. Kaiju Core Sync Overclock (Revised)
Now called "Ascension Mode."
Unleashes up to 120 seconds of maximum power with reduced loss of consciousness.
However, it ultimately causes neural exhaustion and extreme cardiac risk.
4. Symbiote Drone System
Small, detachable drones stored in the armor.
They function as extensions of the suit: field analysis, containment of smaller beasts, or coordinated attacks.
5. Instinctive Synchronization
Rintaro can now sense kaiju patterns before they even fully manifest.
This almost premonitory ability gives him an advantage against surprise attacks.
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Risks
Neural Load: The longer he's synchronized, the more his brain suffers micro-ruptures-risk of aneurysm and memory loss.
Organic Erosion: The suit is still partially made of stabilized kaiju matter. Prolonged use increases the chance of irreversible fusion with the host.
Isolation Factor: Because it's highly experimental, Artemis Ver.02 is considered a restricted weapon. Only Rintaro can use it-but if he loses control, no one would be able to easily contain him.
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Symbolism
Artemis Ver.02 isn't just a costume-it's the embodiment of Rintaro's choice:
He fights on the border between science and monstrosity.
He maintains his humanity while using the very essence of the kaiju against them.
He is the Defense Force's "last resort," but also the greatest threat hidden within it.