Description:

Through the work of both Kijin and human scientists working alongside each other, they have developed a unique form of cybernetic augmentation called "K-Tek." K-Tek seamlessly integrates with the 's body, enhancing their natural physical strength, durability, and combat capabilities while maintaining a sleek, intimidating design.

Key Features:

Oni Alloy Framework – A specialized metal infused with Seastone fragments and Kijin thermal power, making it incredibly tough while allowing s to channel their natural abilities through the enhancements.

Shock Absorption Layering – Internal components absorb impact to prevent recoil damage.

Infernal Core System – A high-powered energy core, modeled after the Kijin's natural heat-based abilities, capable of generating bursts of extreme heat, flames, or even explosive force to amplify attacks.

Adaptive Combat Limbs – Cybernetic arms and legs reinforced with Oni Alloy, allowing for extreme speed, strength, and rapid energy-based attacks. Some models have retractable blades, impact boosters, or heatwave emitters.

Weaknesses:

K-Tek systems are highly vulnerable to water, which can short-circuit the cybernetic limbs, causing severe malfunctions. If fully submerged, the Infernal Core shuts down, leaving the completely powerless until they dry out and reboot. Kijin with Devil Fruit powers suffer even worse effects, as Seastone components and water leave them immobilized.

Overheating Risks: K-Tek’s Infernal Core System can overheat, causing limb malfunctions or complete shutdown. If pushed too far, the heat can cause internal burns or nerve damage to the .

High-power attacks drain the Infernal Core, limiting prolonged combat. s need to either recharge manually or absorb external heat sources to sustain long fights.

Waterproofing Solution: Abyss-Grade K-Tek

To overcome K-Tek’s weakness to water, the Scientists developed a highly advanced variant known as Abyss-Grade K-Tek (Shin'en Kigi). This version is rare and reserved for elite Kijin warriors who operate in aquatic environments

• Abyss Armor Coating: A special non-conductive waterproof coating infused with Seastone microfibers, allowing cybernetic limbs to function even when submerged. The coating prevents water from interfering with circuitry, but excessive exposure still causes gradual system degradation.

• Aqua-Sealed Core System: A modified Infernal Core System capable of storing and converting kinetic energy from water pressure, using it to fuel the instead of shutting down.

"Demon Gills" Ventilation System: Built-in water drainage vents that rapidly expel trapped water, preventing internal damage.

Oni-Tek’s Role in Kijin Society

The invention of K-Tek was meant to be a gift, not a curse—or at least, that’s what the human scientists claim. Developed as a next-generation cybernetic enhancement, K-Tek was designed to help the Kijin defend their homeland, Devil’s Paradise, from the increasing threats of the world. Yet, instead of being welcomed as a revolutionary advancement, it became a symbol of division among the Kijin race. The scientists believed that by fusing science with Kijin warrior culture, they could create an unstoppable force capable of protecting Devil’s Paradise.

“The world is changing. Tradition alone won’t keep you safe forever. Let us help you adapt.” – Human Scientist Advocate.

"Tradition won’t save us or protect our home from invaders who grow more dangerous with each day. We will forge a new future—one where we are both warriors and weapons.” – Kijin Warrior

To the majority of the Kijin race, however, K-Tek was an abomination—an attempt to erase their warrior heritage and turn them into something less than Kijin.

“We are warriors, not machines. We do not need metal to be strong—we are strong because we are Kijin.” – Elder Kijin.