Chiyue

Biodata

Feature	Information
Name	Chiyue (赤月)
Alias(es)	Princess Akatsuki; Queen Chiyue; Red King of Eternal City; White Moon Princess 208 230 290 430
Species/Race	Mermaid; becomes a fish-person after her tail divides into legs at age 30 212
Gender	Female
Affiliation	Chiyue Pirates (Captain); Eternal City 224 226 290
Occupation/Role	Fish-Man princess; pirate captain; leader advocating Fish-Man settlement on land 179 224 232
Status	Alive
First Appearance	Chapter 179 (first mentioned) 179

Power Progression

Stage / Realm / Level	Chapter	Notes
Mental resilience	197	Her congenital stiff-bodied condition leaves her mind unusually active and resistant to the lingering influence of Otohime's will-altering ability. 197
Thunder Fruit user / Aura-enhanced body	220	Receives the natural-type Thunder Fruit and a fused Innate Aura Flame, intended to raise her physical talent toward Charlotte Linlin's level. 220
Future-sight Observation Haki	221	Develops Observation Haki capable of seeing several minutes into the future; her widened lightning perception complements it. 221
Island-shattering lightning combatant	226	Defeats Wang Zhi with Thunderstorm, shattering Warship Island in a single strike. 226
Thunder God coordination	244	Bonds with Thunder God after it gains the Cloud Cloud Fruit. Their coordination reduces the stamina cost of equivalent lightning attacks to roughly 30% and raises her overall combat power by about 20%. 244
Armament Thunder God Mode	265	Combines with Thunder God and activates an armored combat form when Zunesha attacks. 265
Myriad Dragon Lightning Punishment	290	Defeats Sengoku and Kizaru, then maintains a city-wide lightning assault for three minutes, forcing the Marines to retreat from Eternal City. 290
Future-sight elemental evasion	365	Uses precognition to elementalize before impact, opening a gap through which even Chaos Armament Haki attacks pass. 365
Adapted Mind Power	431	After the White Moon Princess's emergence, she completely adapts to absorbed Mind Fruit power and gains control abilities described as stronger than Luo Han's. 431

Background and History

Chiyue is the daughter of the Ryugu King and Neptune's sister. A Celestial Dragon places an enormous bounty on her, prompting the Ryugu King to strengthen patrols around Fish-Man Island for her protection. 179

Since birth, Chiyue suffered from a strange condition: her body was stiff while her mind remained exceptionally active. She believes this imbalance explains both her rational disposition and her unusual resistance to Otohime's mental influence. 197

After joining Luo Han's voyage, Chiyue resolves to become his woman not merely from gratitude, but because she sees an alliance with him as the most reliable path for the Fish-Man race to establish itself on land. She remains committed even after Luo Han offers to help her people without demanding that relationship. 211 212

At age 30, Chiyue's mermaid tail divides into legs, transforming her into a fish-person. Luo Han's Innate Aura Flame gradually heals the stiffness that had affected her upper body, though her calm and highly rational demeanor remains unchanged. 212 221

Appearance

By the time she leads her own pirate fleet, Chiyue stands roughly 15 meters tall. Her imposing size, long red hair, and usually expressionless beauty contribute to the regal image that earns her the title “Queen Chiyue.” 219 225 230

• Long red hair that flows behind her in battle. 226
• A beautiful but stern face, typically marked by a composed, emotionless expression. 219 226
• Formerly had a mermaid tail; gained legs upon becoming a fish-person at 30. 212
• Often surrounds herself with azure-blue lightning, giving her the appearance of a lightning-clad valkyrie. 221
• Her intimidating presence can make onlookers instinctively tense or feel as though their hearts are being gripped. 225

Personality

Chiyue is calm, rational, and exceptionally deliberate. Her stiff expression conceals an active inner life and sharp perception of subtle facial cues; she can notice even fleeting changes in another person's expression. 212

Her decisions are guided by responsibility toward the Fish-Man race. She views contact, trade, and coexistence with humans as necessary steps toward a future in which Fish-Men can live openly on land rather than remain isolated in the deep sea. 211 232

Despite her restrained nature, Chiyue is protective of her companions. She saves Aisi during the Gorosei ambush, reassures Aixi after losing her arm, and maintains discipline when panic threatens the group. 291 296

Her later revelation radically recontextualizes her behavior: the White Moon Princess, a Mermaid Princess from eight hundred years ago, had been latent within Chiyue's mind and eventually takes control to pursue her own plans against Luo Han. 430 431

Abilities & Skills

Thunder Fruit

Chiyue wields the natural-type Thunder Fruit, granting lightning-based attacks, extreme movement speed, and elemental transformation. 220 226

• Can move as a flash of bluish-white lightning, overwhelming opponents before they can react. 226
• Forms lightning armor around her body for close-range combat. 226
• Uses Thunderstorm, a descending lightning-infused punch powerful enough to shatter Warship Island. 226
• Uses Myriad Dragon Lightning Punishment, a prolonged, large-scale lightning barrage capable of devastating a battlefield. 290
• Can disperse her elemental body in advance of an incoming strike, allowing attacks to pass through an intentionally opened gap. 365

Observation Haki

Chiyue's Observation Haki develops into future sight after receiving the Thunder Fruit and Innate Aura Flame. 221

• Sees future events several minutes ahead under normal conditions. 221
• Uses precognition with lightning-speed movement to control the pace of combat. 226
• Detects sudden threats and warns allies during the Gorosei ambush. 291
• Her future sight can be obscured by Luo Han's mental abilities. 221

Armament Haki

Chiyue combines refined Armament Haki with her physical strength and lightning attacks. 226

• Infuses her strikes with Armament Haki to break through an opponent's defenses. 226
• Uses Flowing Cherry Haki in sparring. 364
• Seeks to learn Elles's Chaos Armament Haki after witnessing its condensed offensive and defensive properties. 232

Thunder God Mode

Thunder God, a living thundercloud that consumes the Cloud Cloud Fruit, follows Chiyue because of their shared lightning affinity. 243

• Can transform into armor around Chiyue's body. 244
• Amplifies and condenses her lightning attacks. 244
• Allows her to conserve stamina for Armament Haki and sustained combat. 244
• Can create weather clouds beyond ordinary thunderclouds. 244

Healing and Physical Resilience

Chiyue possesses remarkable recovery and gains exceptional physical potential through Luo Han's fused Innate Aura Flame. 220 232

• Heals a combat injury after Elles breaks through her Armament Haki during their duel. 232
• Remains composed after losing her left arm and focuses on the safety of her allies. 296
• Her severed arm cannot fully regenerate through healing alone; Luo Han records and restores her complete bodily aura, after which Elles accelerates the regeneration with a Life Light Orb. 296 312
• Her restored arm initially lacks the strength of the rest of her body but is expected to recover over time. 312

Fish Communication

Chiyue can communicate only with five types of fish and can issue simple commands rather than hold full conversations. 211

• This limitation prevents her from using whales to locate the Lanternfish. 211
• She nevertheless identifies the Lanternfish when it disguises itself as an underwater mountain. 236

Mind Power

After the White Moon Princess awakens within her, Chiyue adapts to Mind Fruit power taken from Luo Han. 430 431

• The White Moon Princess had secretly remained in Chiyue's mind while preparing a future plan. 431
• Her resulting control abilities are stated to surpass Luo Han's own. 431
• Her sacrifice enables Luffy to attack Luo Han within the Mind World. 430

Equipment / Weapons / Items

• Emergency positioning ring — A sea-blue ring that adjusts to fit her finger and can be broken to alert Luo Han when she is in mortal danger. Chiyue destroys it while searching for the Lanternfish. 226 235
• Life Card Paper — Carries Luo Han's Life Card Paper while fleeing Eternal City, using it to confirm his safety. 296
• Thunder God — Her lightning-affiliated living thundercloud companion and combat partner. 243 244

Relationships

• Ryugu King — Father; fears for Chiyue's safety because of the bounty placed on her by a Celestial Dragon. 179
• Neptune — Brother; volunteers to patrol Fish-Man Island's outer waters to protect her. 179
• Luo Han — Companion and later partner. Chiyue chooses the relationship partly to secure a future for the Fish-Man race, while Luo Han strengthens her with the Thunder Fruit and Innate Aura Flame. 211 212 220
• Elles — Mentor, sparring partner, and occasional rival. Elles teaches Chiyue Haki and the Six Powers, while Chiyue later withstands her attempts to intervene in Luo Han's confrontation with Sola. 221 232
• Sola — Assigned as a member of Chiyue's pirate crew; their relationship begins with friction but they fight under the same broader alliance. 224 232
• Aixi — Companion whom Chiyue protects during the Gorosei attack; Chiyue later comforts Aixi over the loss of her arm. 291 296
• Wang Zhi and Silver Axe — Recruited into Chiyue's pirate crew after she and Takk defeat them. 226
• Thunder God — Lightning-compatible companion that follows Chiyue and becomes part of her combat style. 243 244

Story Role / Major Arcs

Formation of the Chiyue Pirates

Luo Han tasks Chiyue with forming a pirate crew and gaining influence in the New World as preparation for relocating Fish-Men to Ark Island. She accepts the captaincy, and later recruits Wang Zhi and Silver Axe after defeating them. 224 226

New World Queen

Chiyue becomes known as “Queen Chiyue” after defeating major pirates, including Bundy Wald's crew. Her combination of future sight and lightning-speed offense becomes feared for producing near-instant victories against most opponents. 230

She leads a fleet that includes Fish-Men and humans, using this mixed crew as evidence that the races can coexist. She selects roughly one thousand Fish-Man craftsmen to help establish a new settlement. 232 235

Search for the Lanternfish

While Luo Han controls Sea Kings across the New World, Chiyue independently searches for the Lanternfish. She recognizes it beneath the sea while it masquerades as a mountain and signals Luo Han by breaking her positioning ring. 235 236

Eternal City War

As the Red King of Eternal City, Chiyue turns the battle against the World Government by defeating Sengoku and Kizaru and unleashing Myriad Dragon Lightning Punishment. The attack inflicts severe losses and compels Fleet Admiral Kong to order a retreat. 290

During the subsequent Gorosei ambush, she saves Aisi but loses her left arm. She escapes to a guarded safe house, reunites with the other Eternal City executives, and eventually regains her arm through Luo Han and Elles's combined abilities. 291 296 312

White Moon Princess Revelation

Chiyue initially denies knowing the White Moon Princess, but the final conflict reveals that the eight-hundred-year-old Mermaid Princess had been concealed within her mind. The awakened Princess adapts to Luo Han's Mind Power, turns against him, and aligns with Luffy's effort to defeat him. 398 430 431

Trivia

• Chiyue's reported bounty is inconsistent: the Ryugu King cites 20 billion Belly, while a later account refers to a 5 billion Belly bounty. 179 232
• She briefly displays an unexpectedly childlike smile while repeatedly testing the size-changing property of Luo Han's emergency ring. 226
• Fish-Men are oviparous; Chiyue explains that she carries a single, very small egg rather than showing a human-like pregnancy. 400