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You can find guys good at fighting all over the place. But a guy who'll stand up to anyone because there's something he won't give up, not many guys like you at all.
— Draken to Takemichi[1]

Ken Ryuguji ( (りゅう) (ぐう) () (けん) , Ryūguji Ken?), or Draken (ドラケン, Doraken?), was a founding member and the Vice-Leader (副総長, Fuku Sōchō?) of the Tokyo Manji Gang. Two years later, he joined Brahman.


Draken is a muscular teenager who is exceptionally tall for his age. His head is shaven on the sides and back to expose his signature dragon tattoo on his left temple. His blonde hair is long on the top of his head and kept in a neat braid. He leaves a few strands of hair lose in the front.

He is confirmed to be quite lean and has chiseled abdominal muscles. Takemichi remarked that his body does not seem like that of a teenager. Draken has a scar on the left side of his abdomen after being stabbed. He wears the standard Toman Toppoku while with the gang, and his favorite casual outfit seems to be a patterned long jacket.


Like the president, vice-president Draken is also quite the wild individual. He loves a good fight and relishes meeting strong opponents. He is rude to those he considers beneath him and makes it clear he does not like them.

Unlike Mikey, Draken is the more mature and logical of the two. When the two are being scolded in the hospital by the father of a girl who was assaulted by Moebius, Draken is the one who forces Mikey down to apologize, understanding the man's rage and that it was better to receive his anger without a word than to try and defend themselves. When Pah-chin decides to take the fall and responsibility for Toman by deliberately getting arrested, Mikey tries to get Pah-chin to run. However, Draken stops him, saying that it is the right thing for Pah-chin to do. There are times when Draken's anger gets the best of him, though, and he lashes out in rage.

Draken is also a very caring individual. He hates overtly showing affection to the ones he cares about but will go to great lengths to take care of Mikey. He puts up with Mikey's antics and values him as a close friend, carries Mikey around when he falls asleep, takes him to eat his favorite foods, and wakes him up every morning for school. In addition, he gave Emma a plushie for her birthday, and Emma notes that it was one that she had been wanting for a while.



As Toman's vice president, Draken's authority over the gang comes second only to Mikey in theory. In reality, his authority is more or less equal to that of Mikey's. Thus, he is able to freely command its members as well as increase their morale.

Fighting Prowess

As Toman's vice-president, Draken's fighting prowess is incredibly fearsome. When he is hit in the head by a metal pole, he is still able to stand and defeat 20 opponents. His recovery is remarkably quick as he quickly heads right back into battle when reinforcements shortly arrive. He even survives a life-threatening knife wound.

With his immense strength, Draken prefers to fight like a brawler, using simple yet powerful and vicious kicks and punches. He has knocked back a formidable opponent taller than he is several feet back with a haymaker after defeating tens of enemies beforehand. He was also able to send flying the much taller and larger South Terano as well.

His power is so immense that he was able to hold his own against and defeat a whole gang by himself and was still in fairly good shape after that. Although one could surmiss that his strength is comparable to Mikey's it is proven this is not the case when a combined force of Draken himself, along Peh-yan, Chifuyu and Mitsuya were unable to defeat Mikey.

Mechanical Knowledge

Draken is well-versed in machines, especially motorbikes. He is skilled enough to fix and assemble parts of a bike with ease. He also tends to miscellaneous chores in the brothel he lives such as fixing lightbulbs.


Manga Appearances
Chapters in order of appearance

Toman Arc

Anime Appearances
Episodes in order of appearance

Toman Arc

Moebius Arc

Valhalla Arc


  • (to Takemichi Hanagaki) "You can find guys good at fighting all over the place. But a guy who'll stand up to anyone because there's something he won't give up, not many guys like you at all." [1]


  • The name Ken means "hard, firm" (堅).
  • Ken's surname Ryuguji means "dragon" (龍) (ryu), "temple, shrine, palace" (宮) (gu) and "temple" (寺) (ji).


  • According to the official character book:
    • His dream is to have a half motorcycle body.
    • His image color is pink.
    • The person he respects is Sano Manjiro (Mikey).
    • The person he dislikes or fears is Kazutora.
    • He likes fiddling a motorcycle.
    • He dislikes old men who wear too much perfume.
    • His special skill is counselling service (because he listens to the young women in the establishment everyday).
    • His heroic story (or failure story): He crushed a biker gang with Mikey sleeping on his back.
    • His favorite spot is near Dogenzaka in Shibuya.
    • Draken's relationship: In the past:
      • Mikey: Respect
      • Emma: Love
      • Takemichi: Like
    • A daily activity of a certain day (from morning till bedtime):
      • Go to wake Mikey up, go to school, crush the delinquents of another school, or fiddle with a motorcycle, just go along with Mikey’s mood on the day.
    • From the question "Who do you want to be your lover?", Draken is ranked number 2 from Top 3 Best Boyfriends.
    • From the question "Who do you want to marry?", Draken is ranked number 1 from Top 3 Best Husbands.
    • From the question "Who's strong in arm wrestling?", Draken is ranked number 2 from the Top 3 Best.
  • His favorite hobby is muscle training.
  • His favorite food is hot curry.
  • His motorcycle is a Kawasaki Zephyr 400.
  • Tatsuhisa Suzuki voiced Draken in the first anime, however for the second season Draken has been recast to Masaya Fukunishi.
    • Masaya Fukunishi has rerecorded all voice lines of Draken for the first season. The Japanese two-part Blu-ray Box and rebroadcast (July-December 2022) of the first season, will feature Masaya Fukunishi's voice for Draken.


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