Kaya
Height: 170 cm
Age: 17
Species: Human.
Bounty: None
Devil Fruits: Ryu Ryu no mi Model: Safi'jiiva.
Reward:
Red Dragon Heart
True Name: Ryu Ryu no mi Model: Safi'jiiva
Item Type: Core / rare component (also appears as a consumable variant)
Suggested Rarity: ★★★★★★★★★★☆ (11)
Value: 7,600 zenny
Source: Safi'jiiva, the Red Dragon
Lore Description
A petrified, still-beating organ taken from the chest cavity of the ancient Red Dragon.Even inert, it pulses with a warm tremor that echoes the heartbeat of the earth itself.Dense bioenergy swirls inside its chambers—raw, volatile life-force capable of reshaping armor, empowering weapons, or fueling forbidden relics that were never meant to be awakened.
Those who carry its pulse, even briefly, find their own life-essence synchronizing with the surrounding ecosystem… often with catastrophic results.
Origin — Bioenergy of Safi'jiiva
Safi'jiiva, the adult state of Xeno'jiiva, feeds on ambient life-force.Its heart functions as a bioenergy furnace, absorbing the vitality of:
Living creatures
Plant matter
The land itself
That same ability persists in the heart even after removal.
Effects on a Host (General)1. Environmental Absorption.
A living host begins to draw energy from everything nearby.This results in:
Accelerated healing
Regeneration
Local ecological collapse
Within minutes, grass withers, soil cracks, and wildlife flees Urban areas may turn desolate if the host is not restrained.
2. Physical Alterations
Typical manifestations include:
Glowing red or blue luminescent veins
Crystalline fissures across the skin
Sharpened nails that resemble biocrystal claws
Heat distortion around the body
Eyes with a ruby draconic shine
Prolonged exposure triggers a partial metamorphosis toward a draconic form.
3. Power Tiers of MasteryTier I – Partial Control
Extreme regeneration
Enhanced strength + durability
Latent bioenergy attacks (flame/plasma-like)
Tier II – Synchronization
Shockwaves that drain energy from enemies
Auto-regeneration by absorbing ambient life
Weapons and gear become supercharged
Tier III – Path to Dragon
Terrain manipulation (cracking earth, crystal growth)
Large-scale energy absorption
Body begins a full transition toward an Elder Dragon
Path-The Host Who Succeeds"Bearer of the Red Dragon Heart"
This is the rare case where a human maintains willpower strong enough to coexist with the organ without being consumed.
⚫ Base State – Human with Suppressed Draconic Traits
Appearance
Draconic slit pupils; ruby glow intensifies during combat
Luminous bioenergy lines across arms, neck, and chest
A faint heatwave-like distortion surrounding the body
Hair darkens with red-tipped streaks, subtly stirring without wind
Physically, they remain humanoid—yet unmistakably touched by an Elder Dragon's heartbeat.
Mindset
The user stays rational, but constantly feels:
a second heartbeat
a dormant predatory instinct
the urge to absorb energy when injured
It is like carrying a sleeping dragon beneath their skin.
🐉 Form I – Draconic Hybrid (Controlled Mode)
A deliberate fusion of human shape and Safi-imbued power.
Appearance
Thin scales along arms, shoulders, and cheekbones
Retractable biocrystal claws
Small radiant plates forming along the spine
Breath infused with unstable red-blue bioenergy
Scars and lines that glow with each pulse of power
Abilities
Rapid regeneration
Enhanced speed via kinetic bioenergy pulses
Energy-charged melee strikes
Partial life-absorption on contact
Crimson Pulse: a shockwave of condensed bioenergy
Drawbacks
This form drains the heart's reserves.Prolonged use risks triggering an involuntary transformation.
🔥 Form II – Draconic Awakening (Beast Form, Still Controlled)
The strongest form achievable without losing identity.
Appearance
Slight growth in height and musculature
Arms and legs coated in semi-crystalline Safi-like armor
Partial wings formed from solidified bioenergy
Small horns or crystalline protrusions on the brow
Skin fused with volcanic-red crystal veins
Voice layered with a deep draconic echo
Visually, this form resembles a fusion of:
Safi'jiiva's body structure
human silhouette
a dragon forged from living energy
Abilities
Red Dragon Breath: a sustained beam of condensed bioenergy
Crystal Burst: shards launched by fracturing hardened scales
Major Regeneration (massive recovery factor)
Low-Level Terrain Manipulation
spreading fissures
crystal growth
heat distortion
Bioenergy Shield: temporary protection from overwhelming attacks.