Okubo Naoya
Okubo Naoya the King of Combat
Kanji: 大久保 直也
Romaji: Ōkubo Naoya
Epithet: "The King of Combat"
Status: Alive
Age: 32[1]
Birthday: November 4th[1]
Height: 195cm[2][1]
Weight: 116kg[2][1]
Gender: Male
Affiliations: Muji TV
Kengan Wins: 0
Kengan Losses: 1[3]
Ashura Debut: Chapter 31
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Okubo Naoya (大久保 直也, Ōkubo Naoya; "Naoya Okubo"), also known as "The King of Combat" is the Absolute Champion of Ultimate Fight and the affiliated fighter for Muji TV in the Kengan Annihilation Tournament.


Okubo is an extremely muscular, powerful-looking individual of great height, around Kanoh Agito's height. He has a plain round face, with subtle tear-troughs, short cropped brown hair and a lack of facial hair.


Okubo is a goofy and seemingly unwise person, losing his cool when playing Shogi. With a similar personality to Rihito, who he gets along well with, he is also a pervert. However he is extremely perceptive where fighting and martial arts are concerned.


Initially a baseball player, with dreams of joining the big leagues, Okubo joined the wrestling team in his first year of middle school where he soon distinguished himself as a wrestler in the blink of an eye. While in middle school, he placed in the top 4 wrestlers nationally and in his senior year he won the national championships, earning a spot in the world championships. However Okubo soon quit wrestling and took up boxing, which he participated in for two years (becoming a national team member) before quitting and he joined MMA.[4]

Having just signed a contract for "Ultimate Fight" (the biggest MMA promotion in the world), Okubo appeared in a documentary where he dropped his infamous bombshell. His incendiary statement took the world by storm but, despite the backlash it got him, Okubo finally ended up becoming the first Japanese heavyweight of Ultimate Fight.[2]


Okubo was first seen deep in thought while playing shogi against Kaneda Suekichi. Quickly losing afterwards, he cursed his inability to defeat Kaneda at the game. When Yamashita Kazuo stepped up to play Kaneda, Okubo cheered him on though Yamashita ended up losing as well. With Kaneda then suddenly leaving, another man stepped up to challenge Okubo instead (and ended up beating him as well). After soon arriving at Ganryu Island, and seeing all the beautiful women around, he and Rihito dived right in.

On the day of the tournament, Okubo, Rihito, Kaneda and Himuro observed the ensuing first round fights together. Before Kure Raian's fight against Mokichi Robinson, the group had to calm down a raging Rihito after the latter had been accosted by Raian. In the final match of the first round of the Kengan Annihilation Tournament, representing Muji TV, Okubo faced Kanoh Agito. While fighting Agito, he began to feel like he was at a disadvantage, causing Okubo to rapidly change his style of punching, throwing and grappling; as a result Okubo began dominating as Agito couldn't keep up. But in the end, Agito "evolved" and defeated Okubo with his own MMA style.

Power & Abilities

Okubo is an MMA champion with a record of 26 wins out of 26 and not a single opponent making it to the final round against him.[2] With immense strength and endurance, Tokita Ohma could clearly recognise that Okubo was the most powerful of the 'four stooges' (a group consisting of Okubo, Rihito, Himuro and Kaneda).[2]

Okubo's speciality is grappling, a style which he started out in as a wrestler and continued to hone throughout the years.[4] However, his strongest weapon aren't flashy moves, but instead a fluid synthesis of basic moves from grappling, locks, blows and throws.[5]

Notes & Trivia


  1. 1.0 1.1 1.2 1.3 1.4 1.5 Okubo Naoya's profile
  2. 2.0 2.1 2.2 2.3 2.4 Chapter 111
  3. After defeat to Kanoh Agito during the Kengan Annihilation Tournament(Ch115)
  4. 4.0 4.1 Chapter 113
  5. Chapter 114
  6. Chapter 63