Jin has shoulder-length blonde hair and light brown eyes. He is considered to have very attractive features, which is repeatedly pointed out by his female classmates. Having played football since he was a child, Jin also has a toned body and lean muscles.
He likes flashy attire and tends to stand out a lot - one of his many outfits seen in the manga is a yellow Bruce Lee jumpsuit, which he wore in place of school training gear at a camp. Jin also prefers wearing flip-flops, which are his choice of footwear even when in school uniform.
Jin wears Seiseki's black home kit or yellow away kit with black Asics brand boots.
Jin is a kind person; however, he doesn't go out of his way to point out other's mistakes. As a natural genius in the sport of football, he has never been required to work hard in his life. He doesn't have an arrogant attitude, despite this, and he makes a lot of friends. He isn't afraid to talk back to the upperclassmen of Seiseki or the older players that he plays futsal regularly with.His genius capabilities don't stop at just football. He exceeds in academics as well, easily making him the smartest among the first years in the soccer club. He has immense faith in his abilities and is usually mistaken to be an adult instead of a teenager. In the manga, he says that he is homeless which probably explains his dishevelled look whenever he is in his school uniform. It was also explained in the anime that he was left to fend for himself.
Jin is the oldest child in his family. However, he had a broken childhood, wherein his mother left him behind when she left with his sister on the beach. However, when Jin finally brought Tsukushi to meet her, he is thankful for her to fend for himself.
He is known to have a lone-wolf mentality, opting to go for it himself rather than being a facilitator, even as a right winger. However, after losing to Saku at Inter High Final, it was the first time to took defeat so hard because he finally found a sense of belonging.
- Speed : Jin is incredibly fast and can easily do a 100-meter shuttle run without getting out of breath. He doesn't even run at full speed in most matches, only increasing his speed when the opponent is good enough.
- Intellect : He is very quick to examine his opponents play and pose a counterattack against them. Things like, immense strength, he makes up for by thinking of what his opponents next move would be.
- Overall abilities : Jin is above all a better than the average player. He can easily surpass all of the first years and majority of the second and some of the third years but even he himself admits that he does not know how far his abilities can go. He is also the only one daring to go against Kaoru one-on-one, but despite his best efforts, he was no match for Kaoru in the final of Inter High, so he was left to play with pure instincts and total disregard for his own body. But when we played against Seikan High, his skills got well beyond his own expectations as he scored from a backheel flick as he ran right past the goal line to draw the game level, then score a free kick with his left foot even after his right ankle seem broken with his mother watching on, a skill nobody expected.
- He is a devoted fan of Bruce Lee
- He likes big breasts and dislikes small one's like Ubukata 's
- His favorite word is uncensored
- He has the same name as Tekken 3 character Jin Kazama
- Girlfriend: I can't recall ever having any trouble getting one.
- He has Aerophobia.