Kazuya Yamamura

is a first year student from Saint Ishiyama Academy who looks up to thugs and gangs and wants to become a delinquent himself. He deeply admires Tatsumi Oga as the best hoodlum around and their first contact is when Oga and Aoi Kunieda save him and his friend Azusa Fujisaki from harassment by Teimou Tech students.

Appearance
Yamamura is a tall and mildly muscular teenager who often dresses in the school uniform of St. Ishiyama High. He has short, spiky orange hair (which he dyed), brown eyes, and red piercings on his ears. Befitting the stereotypical delinquent, Yamamura also has dull eyes.

According to an image flashback of Azusa's, Yamamura used to have a black, combed back hairstyle and wore glasses giving him the stereotypical "good hardworking student" look. Until he started looking up to delinquents and had the aforementioned changes to his appearance during summer break.

Personality
He then kowtows to Oga and begs to become his underling. After some insistence and flattery, Oga ends up accepting his company. He also admires Furuichi, much to the latter's delight, calling him "The Strategist Furuichi" as he thinks that he plans strategies when Oga is fighting. His plot role so far has been mostly comic relief and as an information source on the Six Knights.

Plot
Saint Ishiyama Academy Arc

Abilities
Though Yamamura shows no physical strength, he finds he has potential and asks Oga to train him. However, no results have been shown as Oga has not even considered training him. However, it is shown that he will attempt to fight in order to protect someone, an allusion of something Oga once said to Tōjō.

On a side note, in Episode 52 it reveals he has a recorder, so he may be able to play it.

Azusa FujisakiBeelzebub-episode-34-2.jpg
Azusa is a childhood friend of Yamamura. He considers her to be only that and is not embarrassed to say so, however, he remains oblivious to the advances she makes. He takes her as a very good friend whom he wants to protect and keep away from harsh delinquent matters. Fujisaki affectionately calls him by his nickname "Kazu".

Tatsumi Oga
Yamamura's role model in being a delinquent, he is determined to learn everything there is from being a delinquent from Oga. Though initially reluctant to accept him, Yamamura compliments him to the verge of Oga actually smiling. This results with Oga, without thinking, accepting him a "desciple". He affectionately addresses Oga as "Bro" and requested both he and Furuichi call him "Kazu".

Takayuki Furuichi
When Oga reveals his new found desciple, Furuichi intially mocks him for taking him in. Once again, Yamamura compliments Furuichi on the verge of smiling. The two have been steady acquaintances with Yamamura often looking up to Furuichi for strategies and guidance in which the latter responds on instinct. He refers to Furuichi as "The strategist".

Quotes

 * "Hey Bro!" (When adressing Oga)
 * "JOWA!!!" (While using his "technique" Oga taught him)