Persons Concerned
Kazuma Kuwabara
He's actually popular...maybe!?
Mistreated by his family (T/N: Shizuru? lol), beaten up by Yusuke...Kuwabara is not having a very good time. However, the trio Sawamura, Kirishima and Okubo seem to strongly admire and respect Kuwabara, addressing him by the suffix "san" even though they are classmates.
T/N: Kuwabara's friends call him "Kuwabara-san" (桑原さん). The honorific suffix "san" (Mr/Ms) is a polite way to address one another and also shows a sense of respect. It's more common among young boys, specially classmates, to use the honorific suffix "kun". We can notice how his friends truly respect him. Kuwabara is kind of a leader for them.
【Fellows】
Yusuke (eternal rival)
A rival that he must overcome someday. No matter what kind of opponents appear, he believes that he is Yusuke's greatest opponent.
Kurama (teammate) and Hiei (makes him nervous, but he also trusts)
Comrades who he has grown to trust through battles. In particular, he seems to have built a good relationship with Kurama, as they study together at the library and such.
【Sweetheart】
Yukina (adoration)
Kuwabara's loved one. He is completely ignorant of the fact that she is Hiei's younger sister.
【Family】
Shizuru (they're probably on good terms?)
The older sister, an aspiring hairdresser who has a higher psychic ability than her younger brother.
Father
Kuwabara's father, nonchalantly, is very familiar with the situation. Occupation unknown. Cheerful.
T/N: Kuwabara's father is aware about the existence of the Spirit and Demon Worlds.
Eikichi
A domestic cat that Kuwabara, an unparalleled cat lover, is literally petting (dotes on it).
T/N: the Japanese expression "neko kawaigari" literally means "to pet a cat", but it's an expression used to say you dote on someone.
【Classmates】 (trusted friends)
Sawamura
Kuwabara's tsukkomi. He has the most lines out of the three.
T/N: In owarai (Japanese comedy), the tsukkomi is generally the smarter and more reasonable of the comedy duo. In America, tsukkomi is known as the "straight man". When a comedy partner behaves eccentrically, the "straight man" is expected to maintain composure.
Kirishima
One of Kuwabara's friends whose grades and appearance are not so bad, like those of a delinquent.
T/N: Kirishima scored 52 points (out of 100) in the science test, while Sawamura scored 45 points, Okubo 39 points, Kuwabara 7 points, and Yusuke 12 points.
Ōkubo
A hard-working man who works part-time to help support his family with many siblings.
T/N: Although he's still in the 2nd year of middle school, Okubo has a special permit from the Sarayashiki Junior High to work part-time.
Source: Yu Yu Hakusho Official Characters Book Reikai Shinshiroku. Spirit World Record Part 1 - Kazuma Kuwabara. p.37, 2005.
