"Simply put... it's not to get them exterminated. I hate this blanket of policy of getting rid of misfits. My master tells me I'm naive, but what can I say? How can we decide without seeing them in person first? You gotta face 'em to understand 'em."

— Knuckle Bine to Gon Freecss and Killua Zoldyck in "Gyro"

2011 | Manga


Knuckle Bine



Nakkuru Bain

Japanese Voice

Wataru Takagi

Manga Debut

Chapter 200

Anime Debut

Episode 86


Male Male

Eye Color


Hair Color





Beast Hunter




Hakoware: Bankruptcy, Chapter Seven

Image Gallery

Knuckle Bine (ナックル=バイン, Nakkuru Bain) is a Beast Hunter[1] and Morel's apprentice.[2]



Knuckle's full appearance

Knuckle is a young man who styles his black hair into a pompadour. He wears a white overcoat, that has multiple golden rings on it, and baggy white pants with black dress shoes. Sometimes, during battles, he removes his white coat, which reveals his muscular and well-toned physique.

According to Meleoron's first impression, Knuckle's hair looks retro, and his face always looks hostile, as if ready to fight any time.[3]


Knuckle and a puppy

As a Beast Hunter, Knuckle easily befriends animals

Despite acting aggressively, Knuckle is actually very compassionate and easily moved to tears.[4] Knuckle gets along well with animals and is compelled to protect the helpless,[5] taking care of abandoned pets even in the midst of a genocide. Knuckle's sympathy often interferes with his duties as a warrior, despite his battle strength.[6] His soft heart makes him gullible and an easy target for deception. He often ends up saving the lives of those whom he wishes to help by sacrificing his own mission.


Chimera Ant arcEdit

Chibi Gon & Killua
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Knuckle and shoot

Knuckle and Shoot in front of their target, Youpi

Knuckle first appears as one of the assassins sent by Netero to defeat Gon Freecss and Killua Zoldyck in order to gain entrance into NGL.[2] After meeting the boys,[4] he indulges in training them every night for a month by allowing Gon to spar with him after doing his Ren training.[6] At the end of the month, he and Shoot McMahon defeat Gon and Killua and enter NGL to assist in exterminating the Chimera Ants. He makes a promise to Gon, that he'll rescue Kite from the enemy.[7] With the help of Morel he is able to do so.[8]

Knuckle participates in the extermination of Chimera Ants throughout the Mitene Union as well.[9] He and Shoot McMahon are sent to take out Menthuthuyoupi, one of the three feared royal guards.[10]

Knuckle and Morel were later sent to deal with Cheetu,[9] though they were unsuccessful in killing the ant, Knuckle was able to attach his A.P.R which will allow him to be tracked so he may be exterminated at a later date.[11] Shoot accompanies him on his next assault on Cheetu only for the Chimera Ant Flutter (who was surveying the area) to inform Cheetu of the ambush for a last second change of course.[12]

114 - pre-Youpi vs Knuckle fight

Knuckle about to fight Youpi

During the first stage of the assault on the Royal Palace of East Gorteau. He and Meleoron (using God's Accomplice) hit Youpi with A.P.R so Gon and the others could pass.[13] He then watches Shoot fighting Youpi.[14][15] However, enraged at watching his friend being beaten to a near death state, he decides to battle Youpi himself.[16] After fighting him for a short time, Knuckle goes to check on Shoot. Finding nothing but a puddle of blood, he believes it was Youpi's doing. Enraged further, he goes back to finish his battle.[17]

After using a hit and run tactic against Youpi,[18] with the help of Killua, Meleoron,[19] Morel and his Deep Purple ability, they become close to bankrupting Youpi,[20] until an exhausted Morel is caught and used as barter. He releases his A.P.R in exchange for Morels' life. Youpi stays true to his word. He then leaves to look for the King.[21]

Meruem knocking out Knuckle

Knuckle knocked unconscious by the King

Knuckle then regroups with Killua, Ikalgo, Palm Siberia and Meleoron to discuss their next move.[22] When they realize Meruem survived his battle with the chairman,[23] Knuckle and Meleoron hide in the mass of hypnotized humans waiting to put their plan into action. After feeling the intensity of Meruem's En, Knuckle wants to leave and inform the Hunter Association of the current situation, only to be dealt with easily and knocked unconscious when encountered by the Ant King.[24] Sometime after the events of East Gorteau, Knuckle is seen waiting with Knov for an update on Gon's condition.[25]

13th Hunter Chairman Election arcEdit

Being near to Gon, Knuckle along the others assists from the outside[26] and he recovers thanks to Alluka's powers feeling a strange and powerful aura.[27] He then accompanies Gon when he goes to meet Leorio in the room where all the hunters were voting for the new chairman of the Hunter Association.[28] He is seen visiting a healing Shoot in the hospital along with Ikalgo, Palm, and Meleoron looking at a pictures of Small-billed Swans sent by Gon.[29]

Abilities & PowersEdit

Knuckle has all the benefits granted by his status as a Hunter. He has demonstrated considerable physical combat skills, being able to fight enemies much stronger than him. He could have defeated Gon with only two blows if not for his kindness, which has often been said to be his greatest weakness. In fact, Killua claimed that he is as strong as Kite, physically speaking, but he is too soft. Due to his ability he has adapted a hit and away tactic together with Shoot against other Nen users, which consists in capturing or dealing the final blow after the target's Nen is sealed. Knuckle is very versatile, being able to successfully cooperate with various Hunters with completely different abilities and personalities. Despite being a good strategist, Knuckle is also hot-headed and very emotional, which can make him unable to stick to the plan. He claims to need four or five punches to get warmed up.[30] He has high battle experience, which can lead him to predict the next move of his opponent just by looking at the flow of their aura.[31] Moreover, he is very well-liked by animals, which, according to Ging and his son, is proof of being a good Hunter.[4]

Enhanced Strength: Knuckle is stronger than an Enhancer like Gon. Gon stated that, although he had successfully blocked a punch from Knuckle with both his arms and Nen, he still felt its brunt in his whole body and understood that releasing Ken would result in him losing consciousness no matter where he was struck.[30]

Expert runner

Knuckle while running

Enhanced Speed and Reactions: Knuckle has proven himself to be fairly quick, easily avoiding most of Gon's attacks. He also managed to move behind Gon's back in a split second.[31] Furthermore, he grew accustomed to Cheetu's astounding speed and was able to dodge or intercept some of his blows.[32]

Immense Stamina: According to himself, his strongest ability is running away due to his advantage in Chapter 7 Bankruptcy. Knuckle is noted for his ability to run at full speed for an extremely long time even exceed a cheetah, evading four police cars for a day and night when he had only just graduated from primary school. It is highly likely his endurance has increased after growing and learning Nen.

Keen Intellect: Knuckle is an experienced and highly perceptive combatant, although he is often too impulsive and reckless.

Killua versus Knuckle

Knuckle going against Killua

Proficient Hand to Hand Combatant: With his exact degree of skill in martial artistry being unknown, Knuckle is adept at close quarter combat. He fights using mainly his fists, but can deliver powerful kicks as well. Because of his mastery, Gon had to keep Ken active because he was unable to tell where Knuckle would hit and parry all his blows. Killua acknowledged his utter superiority to Gon in bare-handed fighting, and the latter commented his combat skills are on par with Kite's.

Arithmetical Genius: Knuckle is an arithmetical genius, being able to execute complex calculations on the spot and without error.[33]


Being a pro Hunter and the disciple of a Single Star Hunter, Knuckle is highly trained in Nen. His natural category is Emission. Since he managed to overpower Gon and Killua, he seems to be also skilled in Enhancement. Knuckle has a large amount of aura, and due to his experience, is able to waste little of it. He is a capable Ryu user, and has excellent control over the flow of his own aura, making it harder for the opponent to predict how he will attack. He also managed to survive Gon's fully charged Jajanken without injury, although he was knocked out. He is adept at anticipating the moves of his opponents by analyzing the flow of their aura.

Knuckle's Nen Type: Emission
Hakoware (天上不知唯我独損 (ハコワレ) Bankruptcy Chapter Seven, The Heaven Doesn't Know My Suffering)
A.P.R. (Potclean) Type: Emission and Manipulation
Potclean Hakoware involves Knuckle emitting an indestructible mascot called the "Amortizing Power Redirector (A.P.R.)" ("Potclean" in the Japanese manga) onto the opponent after being dealt a blow from Knuckle. A.P.R. constantly lends Knuckle's aura to whomever it's attached to, displayed by a rising counter on its forehead. When adding interest, A.P.R. announces "It's time, adding interest" (「時間です。利息が付きます」, Jikan desu, risoku ga tsukimasu). As long as A.P.R. is attached, any attacks done to Knuckle by his opponent return aura to him, lowering the counter. Until all of the aura lent by Knuckle is returned to him, he cannot be physically damaged by his opponent. The reverse is also true; each of Knuckle's blows only lends aura to his opponent, causing no damage (though in both cases the one receiving the blow may be knocked back by it).[33] The interest rate on A.P.R. is 10% of borrowed aura, accrued every ten seconds.[34] As the amount of interest accumulates, A.P.R. also grows in size. If the aura borrowed from Knuckle exceeds his opponent's total aura, the opponent "goes bankrupt".

Bankruptcy causes the conjured A.P.R. to transform into the "Individual Ren Suppressor (I.R.S.)" ("Toritaten" in the Japanese manga), a demon-like mascot that follows the debtor for 30 days and forces them into Zetsu.[33] However, the final effect may be more similar to closing the Aura Nodes of the target, as Knuckle hypothesized Gon was unable to see a Nen construct the other Nen users could see and feel without resorting to Gyo,[35] and despite Zetsu itself being capable of countering In.[36] The victim only accumulates interest when within 100 meters[37] of Knuckle, but Knuckle can track the general location of the victim at all times, no matter how far away they are.[32] it is worth noting that when Knuckle struck Shaiapouf's copy, A.P.R. was attached to the latter's real body rather than to his clone.[23] Furthermore, Knuckle can use Hakoware on multiple targets at once.[32][35] The ability can be removed by an Exorcist, but it takes a great deal out of the Nen remover.

I.R.S. (Toritaten)


  • (To a puppy) "Where's your dang owner? You gotta pick up after your dogs! Keep our parks clean..."[1]
  • (To the same puppy) "Nobody showed up today either. What a bad owner you have."[5]
  • (To Gon and Killua) "I'd never lose to you punks.[4]
  • (To Menthuthuyoupi) "It ain't happening, scum. 'Cause you're the one going down!! I'll show you who's really the maggot."[19]
  • (Referring to Youpi) "You inflatable freak! I did it!! I did it!! That's it!!! No more!!! I saw angels!! Sheesh, I almost died!! Now I gotta take Shoot to the hospital!! I hammered him eight times!! Oh yeah!!"[38]


  • Knuckle's name is a derivative of a commonly thrown baseball pitch known as the knuckleball; Shoot, Palm and Gyro are all similarly named.
  • The acronym for Knuckle's ability Amortizing Power Redirector (A.P.R.) refers to the annual percentage rate and his Individual Ren Suppressor (I.R.S.) is a parody of the Internal Revenue Service agency. Both financial terms parallel Knuckle's ability to calculate the aura he lends to his opponent.
  • Knuckle bears a resemblance to some YuYu Hakusho characters: Kazuma Kuwabara, Yu Kaito and Yusuke Urameshi.
  • Knuckle also bears a strong resemblance to the protagonist of JoJo's Bizarre Adventure Part IV: Diamond Is Unbreakable, Josuke Higashikata. His rapid punches that he deals to Menthuthuyoupi is also similar to the rapid-fire punches that is often made by Josuke's Stand, Crazy Diamond.
    • Knuckle also bears a very similar personality as Okuyasu Nijumura, the secondary protagonist of JoJo's Bizarre Adventure Part IV: Diamond Is Unbreakable, who like Knuckle usually comes off as an intimidating loud mouth whilst being very caring and kind deep down.
    • Interestingly Knuckle's voice actor, Wataru Takagi also voices Okuyasu Nijimura in the anime adaptation of JoJo's Bizarre Adventure Part IV: Diamond Is Unbreakable.
  • Both Knuckle and Morel have in common references to Elvis Presley; for Morel, it is his "Smoky Jail" technique, whose alternate name is "Jailhouse Rock", a famous song from the American singer, while for Knuckle, it is the pompadour, a hairstyle commonly associated with Elvis.
  • Knuckle's A.P.R. and I.R.S. are both voiced by voice actress Tomoko Kaneda.
  • It was possible to estimate Youpi's maximum amount of aura using data given in the show. In episode 121, the narrator announced the amount of time left before Youpi would go bankrupt (3 minutes and 50 seconds), while showing the amount of aura on A.P.R. (60610). Because A.P.R. compounds every 10 seconds, Youpi's maximum possible aura remaining in that point in the fight would be (60610)*(1.1)^23 = 542,720. Assuming Youpi had already used a substantial amount of aura in his fight already, it is possible that Morel's guess of 700,000 was accurate.
  • According to the "Hunter × Hunter Manual" section found in the Yu ☆ Yu ☆ Hakusho official character book (Shueisha Jump remix), Knuckle's stats are:
Story Arcs Spirit Skill Strength Nen Talent Intelligence
Chimera Ant arc: NGL 3/5 4/5 4/5 4/5 3/5 3/5
Chimera Ant arc: Palace Invasion 4/5 4/5 4/5 4/5 3/5 3/5


  1. 1.0 1.1 Hunter × Hunter - Volume 20, Chapter 201
  2. 2.0 2.1 Hunter × Hunter - Volume 20, Chapter 200
  3. Hunter × Hunter - Volume 23, Chapter 244
  4. 4.0 4.1 4.2 4.3 Hunter × Hunter - Volume 20, Chapter 203
  5. 5.0 5.1 Hunter × Hunter - Volume 20, Chapter 202
  6. 6.0 6.1 Hunter × Hunter - Volume 20, Chapter 205
  7. Hunter × Hunter - Volume 21, Chapter 214
  8. Hunter × Hunter - Volume 21, Chapter 216
  9. 9.0 9.1 Hunter × Hunter - Volume 21, Chapter 220
  10. Hunter × Hunter - Volume 21, Chapter 223
  11. Hunter × Hunter - Volume 21, Chapter 221
  12. Hunter × Hunter - Volume 22, Chapter 235
  13. Hunter × Hunter - Volume 25, Chapter 266
  14. Hunter × Hunter - Volume 25, Chapter 269
  15. Hunter × Hunter - Volume 26, Chapter 271
  16. Hunter × Hunter - Volume 26, Chapter 272
  17. Hunter × Hunter - Volume 26, Chapter 277
  18. Hunter × Hunter - Volume 26, Chapter 278
  19. 19.0 19.1 Hunter × Hunter - Volume 26, Chapter 280
  20. Hunter × Hunter - Volume 27, Chapter 284
  21. Hunter × Hunter - Volume 27, Chapter 289
  22. Hunter × Hunter - Volume 28, Chapter 300
  23. 23.0 23.1 Hunter × Hunter - Volume 28, Chapter 301
  24. Hunter × Hunter - Volume 29, Chapter 308
  25. Hunter × Hunter - Volume 30, Chapter 316
  26. Hunter × Hunter - Volume 32, Chapter 331
  27. Hunter × Hunter - Volume 32, Chapter 333
  28. Hunter × Hunter - Volume 32, Chapter 334
  29. Hunter × Hunter - Volume 30, Chapter 339
  30. 30.0 30.1 Hunter × Hunter - Volume 20, Chapter 206
  31. 31.0 31.1 Hunter × Hunter - Volume 20, Chapter 207
  32. 32.0 32.1 32.2 Hunter × Hunter - Volume 21, Chapter 221
  33. 33.0 33.1 33.2 Hunter × Hunter - Volume 20, Chapter 211
  34. Hunter × Hunter - Volume 20, Chapter 210
  35. 35.0 35.1 Hunter × Hunter - Volume 21, Chapter 222
  36. Hunter × Hunter - Volume 7, Chapter 56
  37. Hunter × Hunter - Volume 22, Chapter 235
  38. Hunter × Hunter - Volume 27, Chapter 281


v  d  e
Hunter Association
Chairman Isaac Netero (12th) • Pariston Hill (13th) • Cheadle Yorkshire (14th)
Vice Chairman Pariston Hill (Former) • Cheadle Yorkshire (Former)
Zodiacs Cheadle YorkshireCluckKanzaiKurapikaLeorio ParadinightPyonGelSaiyuGintaMizaistom NanaBotobai GiganteSaccho KobayakawaPariston Hill (Former) • Ging Freecss (Former)
Examiners SatotzMenchiBuharaLippoTrick Tower's 3rd examinerTogari288th Hunter Exam's 1st Phase Examiner
Classification of Hunters
Archaeological Ging FreecssSatotz
Beast Knuckle BineShoot McMahonPokkle
Blacklist KurapikaLippoBinoltSeaquantBushidora AmbitiousSaiyu
Botanical Cluck
Contract KiteBanana KavaroLin KoshiMonta YurasPodungo LapoySpinner ClowStick Dinner
Crime Mizaistom Nana
D Sheila
Gourmet BuharaMenchiLinne Hors-d'oeuvre
Hacker EetaElenaIckshonpe Katocha
Head Teradein Neutral
Information Hanzo
Jackpot TsezguerraGoreinu
Lost Loupe Highland
Music Melody
Paleograph Pyon
Poacher Ginta
Poison Gel
Sea Morel Mackernasey
Temp CurlyGolemMarioneMascherPekoteroUsamen
Terrorist Botobai Gigante
Treasure Biscuit KruegerKanzai
Trouble Saccho Kobayakawa
Virus Sanbica NortonCheadle Yorkshire
Youth and Beauty Cutie Beauty
Unclassified Gon FreecssKillua ZoldyckLeorio ParadinightHisoka MorowIllumi ZoldyckShalnarkBeansWingHunter Association agentKnovPalm SiberiaShachmono TocinoKessBarryJeitsariIzunaviBashoKharaLinssenGashta BellamZetsk BellamRodriotHagakushiBillSayirdKurtonThetaSalkovMuhanDanjinBelerainte