Rabbit
One Piece: Heart of a Swordsman
Biodata
| Feature | Information |
|---|---|
| Name | Rabbit (兔子) |
| Alias(es) | Tuski; Sage Doctor Tuski 48 518 |
| Species/Race | Intelligent giant rabbit; formerly armored with a dark-red exoskeleton |
| Gender | Male 42 |
| Affiliation | Werther's companion and family |
| Occupation/Role | Adventurer and physician |
| Status | Active |
| First Appearance | Chapter 30 |
Power Progression
| Stage / Realm / Level | Chapter | Notes |
|---|---|---|
| Armored rabbit physiology | 30–31 | Possesses a heat- and corrosion-resistant exoskeleton, notable strength, and enough intelligence to warn Werther away from the artificial volcano; later carries the badly injured Werther to his ship. 30 31 |
| Human-type Fur-Fur Fruit | 36 | Eats a Devil Fruit, sheds his exoskeleton, and gains pale-yellow fur he can manipulate. The transformation costs him the ability to swim and makes him vulnerable to Seastone. 36 |
| Fur-based mobility | 37 | Develops aerial Sky Path movement and a fur-ball escape form with tentacle-like strands for rapid ground travel. His fur is highly durable, though less sharp than the String-String Fruit's threads. 37 |
| Precision fur surgery | 47 | Creates thousands of nearly invisible fur strands to stitch an octopus's internal tissues and nerves, healing its wound with only a thin scar remaining; the technique severely exhausts him. 47 |
| S1 medicine | 67–68 | Develops a medicine that rapidly heals a small cut. He gives Koala both a dose and its formula, explaining that preparation with precision equipment should reproduce about half the effect of his ability-assisted process. 67 68 |
| Tibbers | 109 | With Werther's help, refines his fur-weaving into a five-meter golden bear that he pilots from within. Its transparent viewing patch blocks toxic gas, and its defenses withstand two full-strength sword strikes from Werther before a third cuts through. 109 |
| Fine fur manipulation | 119 | Controls flexible fur strands precisely enough to handle delicate tasks in place of his paws. 119 |
| Epidemic treatment | 669 | Identifies a rare virus behind an epidemic in the Jeremiah Kingdom and describes a process for combining medicines to eradicate it. 669 |
| Fur-written communication | 724 | Weaves words with his fur to communicate during his reunion with Werther. 724 |
| Ability-mimicking treatment | 759 | Explains research by which he analyzed and mimicked an ability, then completes a treatment for Werther; the account does not specify the mimicked ability's effects. 759 |
Background / History
Rabbit first encounters Werther on Black Iron Rock Island as a heavily armored creature. After Werther mistakenly attacks him, Rabbit offers him heat-resistant crystal-like bark and repeatedly warns him not to approach the artificial volcano. Werther apologizes and recognizes that the apparently monstrous creature is gentle and intelligent. 30
When Werther is nearly killed by a coordinated platypus swarm, Rabbit rescues him, brings him fruit, carries him back to the ship, and accepts the carrots Werther offers in return. The two initially communicate through gestures and crude drawings. 31
Rabbit later leads Werther to ancient iron ruins and reveals a hidden compartment containing bark and a stone tablet. His attempted gift disappoints him after Werther finds the bark unpleasant, but Werther eats it anyway to spare his feelings. 32 Rabbit insists on accompanying Werther into the island's forbidden underground facility, where they cooperate to escape a trapped shaft and reach the hidden complex. 33
Over the following two years, Werther teaches Rabbit human language and writing. As Werther prepares to leave the island, Rabbit chooses to accompany him because they are friends. To help him survive at sea, Werther gives him a Human-type Devil Fruit, transforming his exoskeleton into pale-yellow fur and granting the Fur-Fur Fruit. 36
Rabbit becomes Werther's constant traveling companion and is regarded as family rather than a pet. He later chooses the name Tuski, inspired by his desire to become strong after hearing about Admiral Sakazuki. 37 48
Tuski develops medicine aboard Werther's ship and shares his S1 healing formula with Koala. His work eventually earns him the title Sage Doctor Tuski; among those he has treated are Dark King Rayleigh and Golden Lion Shiki. 67 68 518
During his own travels, Tuski treats an epidemic in the Jeremiah Kingdom and forms friendships with several kings. After roughly a year away, he returns to Dressrosa and offers to call on those rulers and two pirates who owe him their lives, Golden Lion and Byrnndi World, to help Werther in the coming war. 669 724
Appearance
Rabbit was initially a little over one meter tall and covered in a dark-red, heat-resistant exoskeleton. After consuming the Fur-Fur Fruit, he shed the shell and gained soft, glossy pale-yellow fur. 31 36 During his later travels, he is described as a somewhat plump, upright rabbit about four and a half feet tall; when he returns to Dressrosa, his fur has grown a little longer and he has gained more weight. 669 724
- Large front teeth, which he brushes regularly. 36
- Carries a backpack containing a pen, notebook, carrots, and collected rubies. 36
- Uses his Fur-Fur Fruit to form a ball-like escape shape covered in fur strands. 37
- Often relaxes with food, juice, medical books, or a fruit platter. 32 40 48
Personality
Rabbit is compassionate, loyal, and unusually brave. Despite Werther attacking him during their first meeting, he saves Werther from the platypuses and later refuses to be left behind when Werther explores the forbidden land. 30 31 33
He is adventurous but highly survival-minded, prioritizing escape techniques over direct combat. His gluttony is a defining trait: carrots immediately win his affection, he demands prepared meals rather than raw ingredients, and he eventually begins eating meat despite originally being a herbivore. 31 34 37
Rabbit is also vain and easily distracted by comfort. After his transformation, he becomes absorbed in admiring his new fur, frequently tries to avoid martial-arts training, and collects rubies as a hobby. 36 48 Beneath this laziness, he is intellectually driven; he develops a genuine passion for medicine and independently pursues advanced surgical applications of his power. 40 47 His dislike of combat does not prevent him from protecting others when necessary, as when he uses Tibbers against attacking Velociraptors. 109
Tuski readily helps people he befriends. He gives Koala his S1 formula, and his later travels leave several rulers and powerful pirates willing to aid him in return for his help. 68 724
Abilities & Skills
Intelligence and Communication
Rabbit possesses human-like intelligence and learns rapidly through observation and experience.
- Understands simple human words after living with Werther, then learns spoken language and writing over two years. 32 36
- Communicates through notes, gestures, and drawings. 31 36
- Navigates Black Iron Rock Island's ruins and operates a hidden wall mechanism. 32
- Appears unusually capable of befriending animals, including News Coos and a vegetarian Sea King. 42
- Communicates through a parrot perched on his shoulder during his visit to the Jeremiah Kingdom and later weaves written words with his fur. 669 724
Fur-Fur Fruit
Rabbit can generate and manipulate exceptionally durable fur after consuming a Human-type Devil Fruit. 36
- Sky Path — Uses fur for aerial escape and movement. 37
- Fur Ball — Wraps himself in fur and uses tentacle-like strands for fast ground mobility. 37
- Binding durability — His fur is difficult to break without Haki or Lightning Mode, though it lacks the cutting sharpness of string-based abilities. 37
- Tibbers — Pilots a five-meter bear woven from golden fur. Its transparent viewing patch keeps out toxic gas, and Werther needs three full-strength sword strikes to cut through its defenses. Tuski can also use it to strike attackers. 109
- Fine manipulation — Uses flexible strands to perform delicate tasks that his paws cannot easily manage and can weave fur into written messages. 119 724
- Limitations — Cannot swim and is vulnerable to Seastone as a Devil Fruit user. 36
Medical Technique
Rabbit applies extremely fine fur strands as surgical sutures.
- Uses thousands of nearly invisible strands to reconnect internal tissue and nerves. 47
- Successfully repairs an octopus's wound, leaving only a thin scar. 47
- Requires intense concentration and leaves Rabbit physically and mentally exhausted. 47
- Develops S1, a medicine that accelerates healing. He gives Koala its formula but says conventional precision equipment would reproduce only about half the effect of his ability-assisted preparation. 67 68
- Identifies a rare virus causing an epidemic in the Jeremiah Kingdom and explains how processed combinations of medicines can eradicate it. 669
- Researches a method of mimicking an ability and uses a treatment on Werther, though the precise effects of the mimicked ability are not specified. 759
Physical Strength
Before gaining his Devil Fruit, Rabbit's armored body was already strong enough to carry the severely injured Werther over his shoulder and run him back to the ship. 31
Equipment / Items
- Backpack containing a pen, notebook, carrots, and rubies. 36
- Medical books obtained with Werther's support. 40 42
- Fruit platters and prepared food supplies aboard Werther's ship. 48
- A laboratory converted for his medical work aboard Werther's ship. 67
- S1 medicine and its written formula. 67 68
Relationships
- Werther — Savior, closest companion, and family. Rabbit rescues Werther from Black Iron Rock Island, accompanies him into the forbidden land, and chooses to sail with him; Werther supports Rabbit's training and medical studies. 31 33 36 40 47 After traveling separately for about a year, they reunite warmly in Dressrosa, where Tuski offers to summon allies for Werther's impending war. 724
- News Coos — Rabbit feeds and befriends them; they later bring him newspapers. 42 48
- Ferdinand — Travels with Rabbit and Werther during the journey to the Iron Tribe's forging family. 42
- Tie Yi — Rabbit remains aboard the ship while Werther deals with the blacksmith, later studying medicine during the forging wait. 43 47
- Koala — Tuski takes a liking to her after she talks with Werther, gives her S1 and its formula, and corrects her when she calls him Werther's pet: he is Werther's family. 67 68
- Anita — Tuski protects her within Tibbers while exploring a dangerous island and later sides with her when she begs Werther to let her remain aboard. 100 109
- Zoro — Provides medicine for Zoro's injuries and attacks him during Observation Haki practice. 219
- Golden Lion Shiki and Byrnndi World — Both owe Tuski their lives and, according to Tuski, would fight for him. Tuski rescued Golden Lion and found World near death while fishing. 724
- Dark King Rayleigh — Among the powerful people Tuski has treated. 518
Trivia
- Rabbit calls Werther “Al,” a name used by no one else in their circle. 40
- He dislikes alcohol after trying it once. 37
- He is shy around strangers and refused to go ashore on the Iron Tribe's island because of its smell. 43
- Rabbit chose the name Tuski himself rather than accepting a name from Werther. 48