Ye Feng

Biodata

Feature	Value
Name	Ye Feng (夜枫)
Alias(es)	Marshall D. Ye Feng; Monkey D. Ye Feng; “White Hair”; Black Robe; Aka; Lin Tian
Species/Race	Human
Gender	Male
Affiliation	Marine; Cipher Pol; former pirate hunter; former disciple of Isshin Dojo
Occupation/Role	Swordsman; cultivator; Marine operative; former commander of CP9
Status	Active
First Appearance	Chapter 1

Power Progression

Stage / Realm / Level	Chapter	Notes
Observation Haki mastered; basic Armament Haki; beginner Sword King	3	Learned under Marshall D. Teach during a year of training; also awakened Conqueror’s Haki.
Entry-level Sword King	6	Confirmed while fighting Vice Admiral Verne; used Armament Haki and Ten Thousand Swords Art, Sword! Heaven-Slaying.
Intermediate Sword King	21	Reached after a year of training at Isshin Dojo; defeated Zoro using one Armament Haki-coated finger.
Nine Yang Manual, second level	24	Broke through after cultivating overnight.
Nine Yang Sword Scripture, second level; Nine Yang Manual, fourth level	25	The fourth level granted inexhaustible inner power.
Blood-Blood Fruit, first level	46	The fruit’s manifestation states that this breakthrough transformed his body into that of a vampire.
Nine Yang Sword Scripture, fourth realm; peak Swordmaster	44 49 50	His swordsmanship reached peak Swordmaster; his overall strength was stated to be enough to fight an admiral to a draw.
Blood Eye and Divine Demon Blood	63 69	Developed blood-control abilities, including direct control over Avril and blood capable of healing severe injuries and increasing strength.
All acupoints and mystic gates opened	129	By reverse-cultivating the Nine Yang Manual, he opened every acupoint and mystic gate, greatly improving his true-qi circulation and cultivation foundation.
Soru and Geppo learned	155 156	Used purified blood to grasp Soru immediately after Garp’s demonstration, then began using Geppo shortly afterward.
Advanced Conqueror’s and Armament Haki application	201	Successfully infused punches with Conqueror’s Haki and Armament Haki after intensive training under Garp.
Haki Patterns	284	Demonstrated advanced Armament Haki control through Haki Patterns while fighting Yus.

Background / History

Ye Feng was a One Piece fan from Earth who died in a traffic accident and soul-transmigrated into the body of a child captured by human traffickers. After the traffickers encountered a sea tornado, he drifted at sea until Marshall D. Teach rescued him in the South Blue in Marine Calendar year 1512. Teach accepted him as a younger brother and gave him the name Marshall D. Ye Feng. 1

Having knowledge of future events, Ye Feng resolved to become powerful through his own efforts. He trained under Teach for a year alongside Avril, a former slave whom he took in as his younger sister. During this period, he learned Haki, reached the Sword King realm, and awakened Conqueror’s Haki. 1 3

After Teach departed for the New World, Ye Feng and Avril became pirate hunters. Ye Feng killed Hungry Wolf Gral, collected the 46 million Beli bounty, and drew the attention of Vice Admiral Verne and Marine Headquarters. 3 5 8

Ye Feng later travelled through the East Blue, meeting Shanks, Luffy, Ace, Sabo, Garp, Kuina, Zoro, Nami, and Makino. He rescued Luffy from the Bluerjam Pirates before leaving Windmill Village to study under Koushirou at Isshin Dojo in Frost Moon Village. 11 21

At Isshin Dojo, Ye Feng gained access to the jade pendant within his mind, which contained martial-arts manuals. He began cultivating the Nine Yang Manual, learned Heaven-Slaying from Koushirou after observing it once, and eventually left the dojo for further travels. 22 26

After returning to Windmill Village four years later, Ye Feng consumed the Blood-Blood Fruit. The fruit transformed his blood, body, hair, and eyes, while its bloodlust initially proved difficult for him to control. At age twelve, he departed for the New World and travelled to Marineford via Loguetown. 38 44

At Marineford, Ye Feng trained under Garp, developed his Blood-Blood Fruit abilities, and began a relationship with Ain. He subsequently sought guidance from Silvers Rayleigh at Sabaody Archipelago, where Rayleigh’s Conqueror’s Haki pressure exposed the instability of Ye Feng’s rapidly accumulated foundations. 63 73 132 142

Ye Feng later opened all of his acupoints and mystic gates through reverse cultivation of the Nine Yang Manual. His aptitude subsequently allowed him to rapidly learn Marine techniques, including Soru and Geppo, while Garp’s training refined his Haki and physical capabilities. 128 129 153 156 201

The World Government appointed Ye Feng as CP9’s commander following Spandine’s death. He later came into contact with Cipher Pol 0 and the Five Elders, whose demands and ruthless methods increasingly placed him in conflict with his own judgment. 232 294 295

Appearance

Following the Blood-Blood Fruit’s transformation, Ye Feng’s appearance changed notably. 40

• Snow-white short hair, formerly ink-black. 40
• Blood-amber eyes, formerly black. 40
• Grew from roughly 1.4 meters to 1.6 meters after his bodily transformation. 40
• Usually carries a sword on his back. 6 44
• Was mistaken for a girl by Smoker because of his appearance. 43
• His eyes can return to their usual color after he replenishes his blood through plasma or blood consumption. 74

Personality

Ye Feng is ambitious and strongly values freedom, declaring his aims as becoming the strongest in the world and attaining “freedom without restraint.” 3 15 He later defines his ultimate ambition as standing at the top of the world, living freely and unfettered, and seeing the entire world clearly. 142 He is confident in his abilities, often calmly confronting far stronger or more established figures such as Vice Admiral Verne, Garp, Arlong, Zephyr, and Rayleigh. 6 15 31 119 120 140

He is fiercely protective of those he considers family. He takes Avril in as his sister, rescues Luffy after learning of his capture, and confronts Arlong over Nami’s safety. 3 17 18 31 35 His protectiveness is paired with ruthlessness: he kills Gral, Mountain Bandit Gram, Bluerjam, hostile animals, Cipher Pol agents, and hostile criminal affiliates without hesitation. 4 12 18 39 255 333

The Blood-Blood Fruit magnifies Ye Feng’s accumulated killing intent into a tangible, Asura-like aura that can terrify observers and overwhelm opponents. 88 89 119 120 221 Although he recognizes the danger of losing himself to its bloodlust, he remains willing to use intimidation, violence, and deception when he considers them necessary for survival or secrecy. 89 94 333 334

Ye Feng is also playful, shameless, and prone to teasing people close to him, particularly Ain. 74 102 114 He is highly adaptable and analytical in combat, rapidly identifying the limitations of unfamiliar Devil Fruit abilities and adjusting his tactics accordingly. 221 225 253 255

Abilities & Skills

Swordsmanship

Ye Feng is a prodigious swordsman who progressed from Sword King to peak Swordmaster while still young. 3 21 44 49

• Can project sword aura strong enough to cut ships, clouds, and large areas of terrain. 15 31 50
• Learned Koushirou’s Heaven-Slaying after seeing it once and replicated it with greater power. 25
• Uses Ten Thousand Swords Art, Sword! Heaven-Slaying against Vice Admiral Verne. 6
• Carries a custom iron sword modeled after a weapon from his past life’s fiction. 24
• Fought Admiral Kizaru in a swordsmanship exchange, exhausting himself after their strongest sword auras collided. 84
• Defeated Daz Bones, also known as Mr. 1 and the “Swordsman’s Nemesis,” by cutting through his steel-like Dice-Dice Fruit body. 221 223
• Can employ his killing intent to disrupt an opponent’s composure and create openings for sword attacks. 221

Haki

Teach trained Ye Feng in Haki, and Ye Feng awakened all three known forms presented in the context. 3

• Observation Haki — detects attacks and nearby presences. 3 11 17 39
• Armament Haki — coats his body or fingers in black armor; used to block Zoro’s sword and fight Verne. 6 21
• Conqueror’s Haki — awakened at age six; Arlong recognizes that Ye Feng possesses it. 3 34
• His Conqueror’s Haki remained unstable despite its early awakening; Rayleigh’s pressure helped him recognize the need to strengthen his foundations before properly developing it. 137 142
• He later learned to infuse his punches with both Conqueror’s Haki and Armament Haki. 201
• Demonstrated advanced Armament Haki control through Haki Patterns in battle against Yus. 284
• His Observation Haki allowed him to evade coordinated attacks from Jin and Ke while maintaining an offensive against Jin. 253 254

Nine Yang Manual

An internal cultivation technique obtained from the jade pendant. 22

• Has nine levels. 23
• Reached the fourth level, Endless Vitality, granting inexhaustible inner power. 25 44
• Supports his sword arts and recovery. 25 47
• The fourth level’s inner power proved insufficient to sustainably operate techniques such as Air-Riding Technique, Divine Demon Blood, Demon God Body, and Storm Leg. 73
• Reverse-cultivating the scripture opened every acupoint and mystic gate in his body, allowing true qi to circulate freely and greatly enhancing his cultivation foundation. 128 129

Nine Yang Sword Scripture

Ye Feng’s primary sword-art cultivation method. 24 44

• Reached the fourth realm. 44
• Its fourth realm contributed to his peak Swordmaster strength. 44

Storm Leg

A fused movement and combat technique created from Lingering Wave Steps and Wind God Leg. 44

• Combines high speed with offensive leg power. 44
• Allows Ye Feng to run across the sea. 31
• His leg techniques are stated to be slightly more destructive than his swordsmanship. 44
• Requires considerable inner power to operate at full capacity. 73

Six Powers

Marine combat techniques taught to Ye Feng by Garp. 154 156

• Soru — Ye Feng mastered the basic movement almost immediately by accelerating his purified blood flow. 155 156
• Geppo — Began practicing aerial movement immediately after learning Soru. 156
• Rankyaku — Can launch pale-blue vacuum slashes with his kicks. 319 343
• Iron Body — Uses it in physical combat and can reinforce attacks against Iron Body users with spatial power. 319
• Uses the Six Powers in sustained close-quarters combat without relying on his Devil Fruit abilities. 319

Demon God Body

A body-strengthening technique selected from the jade pendant. 22

• Greatly increases durability; ordinary blades and guns cannot pierce his body. 40
• Grants extremely rapid recovery after mastery. 44
• Combines with Blood Reincarnation to enhance his survivability. 44
• Requires substantial inner power to maintain at its highest level. 73

Blood-Blood Fruit

A Logia-type Devil Fruit described by its manifestation as the “king of Logia Devil Fruits.” 38 39

• Transforms Ye Feng’s hands and blood into a crimson state. 39
• Allows him to control his own blood and the blood of people weaker than himself. 40
• Replaces and purifies his blood, strengthening and toughening his body. 40
• His blood attracts animals and Sea Kings that seek to consume it. 40
• Initially causes bloodlust and impaired self-control around blood. 39 46
• Ye Feng intends to keep the fruit as a concealed life-saving trump card. 43
• Its power manifests Ye Feng’s killing intent into a tangible murderous aura. 88 89
• Its Logia properties enabled Ye Feng to survive being cut in half by dissolving into blood. 67 68
• Through Erza’s assistance, Ye Feng can absorb the abilities of slain Devil Fruit users. 255

Blood Eye

A Blood-Blood Fruit ability that allows Ye Feng to exert direct control over another person. 63

• Used it to control Avril and compel her to bring him his luggage. 63
• Demonstrates a more precise application of his ability to control the blood of weaker individuals. 40 63

Divine Demon Blood

A blood-based recovery and enhancement ability created through the Blood-Blood Fruit and Nine Yang Manual. 69 73

• Produces refined essence blood that carries immense vitality and power. 69
• Can heal severe wounds and restore lost blood, as demonstrated when Ye Feng treated Avril’s neck wound. 69
• A drop can heal a seriously injured person and increase their strength. 73
• Consumes Ye Feng’s vital blood and inner power to create. 69 73

Blood Reincarnation

A survival technique developed through the Blood-Blood Fruit. 44

• Allows recovery so long as a drop of Ye Feng’s blood, or other blood nearby, remains. 44
• Combined with Demon God Body, it is described as granting an “immortal body.” 44

Spatial and Gravity Powers

Ye Feng later demonstrated abilities involving spatial manipulation and gravity. 262 319 330

• Can store objects within his body through a spatial ability taught by Erza. 262
• Can form a spatial shield around his fist to reinforce physical attacks. 319
• Can conceal himself with spatial power to approach an opponent unseen. 343
• Can levitate objects weighing several hundred pounds, including an entire tent containing captive slaves. 330

Air-Riding Technique

A sword-riding flight technique modeled after fiction from Ye Feng’s past life. 65 73

• Uses pure internal energy to levitate his sword and carry one or more riders through the air. 65 73
• Requires considerable internal energy to sustain. 73

Ice Heart Formula

A calming cultivation technique used to restrain the Blood-Blood Fruit’s murderous influence. 94

• Ye Feng began cultivating it through the Divine Illumination Scripture to suppress the fruit’s bloodlust and prevent himself from becoming a blood-drinking monster. 94

Jade Pendant

A mental-space artifact inherited from Ye Feng’s past life. 22

• Contains a vast collection of martial-arts manuals. 22 48
• Provided the Nine Yang Manual, Wind God Leg, Demon God Body, and other techniques. 22
• Contains the Divine Illumination Scripture, which accelerates Ye Feng’s mastery of techniques. 44
• Can provide manuals suited to specific recipients, allowing Ye Feng to teach cultivation techniques to others in their subconscious minds. 48 96 97

Equipment / Weapons / Items

• Abyss Rainbow Sword — Ye Feng’s custom iron sword, forged to resemble the weapon of the same name from fiction in his past life; his principal weapon. 24 65 135
• Seastone-lined sword — Abyss Rainbow Sword contains Seastone, allowing it to nullify the effects of Devil Fruit powers on contact. 254
• Jade pendant — mental repository of cultivation manuals. 22
• Sea King mount, “Little Ox” — a tamed Sea King used for ocean travel. 27 42
• Blood contract — a blood-linked summoning method Ye Feng used to call Avril to his side during his qi deviation. 129

Relationships

• Marshall D. Teach — Savior and adoptive elder brother; trained Ye Feng in Haki and swordsmanship for one year. 1 3
• Avril — Adoptive younger sister; Ye Feng is deeply protective of her, trained her in cultivation and swordsmanship, and shares a blood-linked summoning contract with her. 3 8 64 69 129
• Monkey D. Luffy — Younger brother figure; Ye Feng rescued him from the Bluerjam Pirates. 17 18
• Portgas D. Ace — Brother figure; frequently punished by Ye Feng for provoking or disrespecting Avril. 18 37 38
• Sabo — Brother figure; joined Ace and Luffy in Windmill Village. 18 37 38
• Koushirou — Swordsmanship master at Isshin Dojo; taught Ye Feng Heaven-Slaying. 20 25
• Kuina — Fellow disciple and Koushirou’s daughter; Ye Feng gave her the Nine Yin Sword Manual before leaving. 20 21 26
• Roronoa Zoro — Dojo rival; Ye Feng decisively defeated him in a spar. 20 21
• Shanks — Acquaintance who befriended Ye Feng in Windmill Village and promised to await him in the New World. 12 15
• Nami — Ye Feng rescued her from Fierdo’s crew, helped her financially, confronted Arlong, and passed cultivation power and a movement technique to her. 28 35
• Makino — Ye Feng’s romantic partner; he gave her the Jade Maiden Heart Sutra before departing for the New World. 40 42
• Monkey D. Garp — Referred to as Ye Feng’s grandfather; repeatedly attempts to recruit him into the Marines, trains him in Haki and the Six Powers, and publicly treats him as his grandson. 41 49 50 153 156 201
• Tina — Marine officer Ye Feng secretly taught the Mystic Maiden Art under the guise of a black-robed figure. 48 49
• Hina — Marine officer whom Ye Feng also secretly instructed as the Black Robe figure, helping her cultivate the Mystic Maiden Art and condense an inner core. 96 99
• Ain — Ye Feng’s girlfriend and Zephyr’s granddaughter; their relationship faced conflict after she learned of his bloody past, but they reconciled and continued travelling together. 74 79 89 91 132 133
• Zephyr — Ain’s grandfather and a Marine mentor who tested Ye Feng’s willpower and initially opposed his relationship with Ain because of Ye Feng’s killing intent. 119 120 126 128
• Silvers Rayleigh — Legendary pirate whom Ye Feng approached for swordsmanship and Conqueror’s Haki guidance; Rayleigh tested Ye Feng’s will and recognized his potential. 135 142
• Erza Scarlet — The female consciousness associated with the Blood-Blood Fruit; she requires Ye Feng’s blood to restore her sanity and strength, later teaches him spatial storage, and assists him in absorbing Devil Fruit abilities. 94 155 229 231 255 262
• Kalifa — Ye Feng’s personal secretary at the Tower of Justice; he delegated document review to her and later travelled with her on Cipher Pol business. 241 243 244 255 259
• Princess Serika — Princess of the Kingdom of Kritin; Ye Feng became involved in her kingdom’s affairs, and she displays jealousy toward Histi’s closeness to him. 271 291 294
• Histi — A modified human imprisoned in an underground laboratory for four centuries; Ye Feng rescued her, after which she insisted on following him. 290 291
• Major Ande and Sara — Marine allies who assist Ye Feng during later investigations and operations, while expressing concern over his ruthless methods. 330 333 334

Story Role / Major Arcs

South Blue and Pirate Hunter Period

• Soul-transmigrates, is rescued by Teach, and becomes Teach’s adopted younger brother. 1
• Takes Avril in as his younger sister and trains under Teach. 2 3
• Kills Gral and becomes known to Vice Admiral Verne and Marine Headquarters. 4 8

East Blue Period

• Travels to Windmill Village with Avril and encounters the Red-Haired Pirates. 10 12
• Meets Shanks, Luffy, Ace, Sabo, and Garp. 12 15
• Rescues Luffy from Bluerjam’s crew. 17 18
• Studies at Isshin Dojo under Koushirou and surpasses Zoro. 19 26

Nami and Cocoyasi Village Period

• Meets and rescues Nami aboard Fierdo’s ship. 27 29
• Allows Nami to take 100 million Beli, then secretly follows her to Cocoyasi Village. 30 31
• Injures and intimidates Arlong, later transferring inner power and Lingering Wave Steps to Nami. 31 35

Blood-Blood Fruit and New World Departure

• Returns to Windmill Village after four years and consumes the Blood-Blood Fruit. 37 39
• Develops the fruit while struggling with its bloodlust and the attraction his blood causes in animals and Sea Kings. 39 40
• Confesses to Makino, gives her the Jade Maiden Heart Sutra, and leaves for the New World at age twelve. 40 42

Marineford Journey

• Arrives in Loguetown and accepts transport to Marineford with Smoker. 43 44
• Secretly teaches Tina the Mystic Maiden Art as the “Black Robe” figure. 48 49
• Reunites with Garp at Marineford and reveals that he has reached peak Swordmaster. 49 50

Marineford Training and Avril’s Advancement

• Reveals the Blood-Blood Fruit and Blood Eye to Avril, demonstrating control over her through her blood. 63
• Teaches Avril the Nine Yin Manual and helps her develop internal energy and swordsmanship. 64 67
• Survives being cut in half by Avril after she breaks through to Peak Swordsman, revealing the Blood-Blood Fruit’s Logia survivability. 67 69
• Uses Divine Demon Blood to heal Avril’s injuries after their spar. 69
• Opens every acupoint and mystic gate after reverse-cultivating the Nine Yang Manual. 128 129

Ain and Sabaody Archipelago Period

• Meets Ain while recovering at Marineford and develops a romantic relationship with her. 70 74 79
• Reveals his lethal killing aura to Ain during a confrontation with a Sea King, causing her to awaken Observation Haki and question his past. 88 90
• Reconciles with Ain after explaining a fabricated tragic background story to her. 89 90
• Travels with Ain to Sabaody Archipelago and meets Shakky and Silvers Rayleigh. 132 135
• Endures Rayleigh’s Conqueror’s Haki test and realizes that his rapid progress has left his foundation unstable. 137 142

Marine Training Period

• Undergoes Garp’s harsh “education through love,” greatly improving his Armament Haki, Observation Haki, physical strength, and endurance. 153
• Learns the principles of the Six Powers and rapidly grasps Soru and Geppo using his purified blood. 154 156
• Refines his Conqueror’s Haki and Armament Haki until he can infuse both into his punches. 201
• Defeats Mr. 1, overcoming the “Swordsman’s Nemesis” with his swordsmanship. 221 225

Cipher Pol Period

• Is appointed commander of CP9, replacing the deceased Spandine. 232
• Arrives at Enies Lobby’s Tower of Justice and receives Kalifa as his personal secretary. 241
• Delegates document processing to Kalifa after recognizing her aptitude. 243 244
• Fights CP0 agents Ke and Jin after learning that Seir betrayed him. 249 255
• Kills Jin and Ke, then absorbs their Devil Fruit abilities through Erza and the Blood-Blood Fruit. 255

Kingdom of Kritin and Laboratory Period

• Infiltrates the Kingdom of Kritin palace and becomes involved with Princess Serika’s crisis. 271
• Battles the transformed human Yus and demonstrates Haki Patterns. 284
• Meets and rescues Histi, a modified human trapped underground for four hundred years. 290 291
• Meets Elder Wu and becomes increasingly aware of the World Government’s ruthless treatment of the Kingdom of Kritin and its people. 294 295

Later Marine Operations

• Rescues a young girl from pirates and resolves to save the men taken from her town. 303
• Fights Deika using the Six Powers and spatial reinforcement without relying on his Devil Fruit powers. 319
• Frees enslaved women after exposing their escape attempt, using gravity manipulation to levitate their tent. 330
• Kills the Celestial Dragon affiliate Redo and interrogates port workers through fear and violence to uncover criminal connections. 332 334

Trivia

• Ye Feng’s stated dream changes in emphasis from becoming “the strongest in the world” to pursuing “freedom without restraint.” 3 15
• He later describes his ambition as standing at the top, living freely and seeing the world clearly. 142
• He used Sea Kings as transportation on multiple occasions. 10 19 27 42
• He calls Kuina “Nana.” 20 49
• Luffy, Ace, and Sabo nickname him “White Hair” after the Blood-Blood Fruit changes his appearance. 40
• Ye Feng’s Abyss Rainbow Sword was modeled after a fictional weapon he knew from his past life. 24
• He uses the Black Robe identity when entering other people’s subconscious minds to teach them cultivation. 48 96 97