In 2011, Jin was the first student from his year in the acting academy to enroll in the Konkuk University as he was accepted on an early admission to both of the best acting universities in Korea - Konkuk and Sejong. Jin graduated from Konkuk University with a major in Film Studies on February 22, 2017. On March 2017, Jin enrolled at Hanyang Cyber University.

On October 17, 2022, Big Hit Music announced that Jin applied for the termination of his enlistment postponement and will soon start his military service. On November 24, 2022, it was reported that Jin will be enlisting on December 13, 2022. On December 13, 2022, Jin officially enlisted as an active-duty soldier, reportedly entering the 5th Infantry Division recruit training center in Yeoncheon County of Gyeonggi Province.

He is expected to be discharged on June 12, 2024.

He is BTS' official visual. His Zodiac sign is Sagittarius.

He has his own mukbang show called Eat Jin. In the show he only eats but does not talk much about the food beyond stating the dish's name. Sometimes, the other members of BTS join him: Jung Kook, Jimin, or Suga, his former roommate.

He is close friends with VIXX's Ken, B1A4's Sandeul, KNK's Seungjun, Sleepy, Jee Seok Jin, Lee Yi Kyung and Yoo Seung Ho.

He can rip open bags of Chips with his feet.

He is part of a group chat named "92 clubs" with MAMAMOO's Moon Byul, EXID's Hani, B1A4's Sandeul, Baro, and VIXX's Ken.

He is part of a gaming crew named "We're The Strongest Idols" with B.A.P's Youngjae, BTOB's Eunkwang, VIXX's Ken and Wanna One's Jihoon.

He knows how to play the guitar and piano.

According to the other members, he is a great cook.

He can speak Korean, some Japanese, English, and Chinese.

He has been to Australia in the past as an exchange student.

He has improved both his dancing and singing impressively since BTS' debut.

He is referred to as 'Worldwide Handsome' by both ARMYs and himself.

What he likes most about himself is his face.

According to RM, he and j-hope are the most cowards members of the group.

His guilty pleasure is eating three steaks.

In an interview was asked who is the Hollywood crush (actress) and he answers the actor, Brad Pitt.

He said wants to collaborate with Shawn Mendes.

His favorite hobbies include cooking, eating, dolls, telling dad jokes, blowing air kisses, playing video games, snowboarding, looking at photographs and recipes, taking polaroids, and taking care of his pets.

He feels uncomfortable being called feminine names by fans. Particularly, "Mom", "Eomma", and "Princess".

In early years when he dances, he was told that he looked like a traffic police (교통 경찰)

His personality is always recognized as caring, humble and funny.

A professional plastic surgery doctor stated that Jin's face was a 'perfect face'- his eyes, nose, mouth, ears, everything in the right place, with the right shape and the right type of face.

Even though Jin majored in filming (took classes in acting), he was asked to learn dancing and singing to be a part of BTS. Despite having no knowledge in either of these areas, Jin worked very hard and is highly appreciated for his visual and talent. People always know him as a good-looking man, but he also has a soft, warm, really nice and amazing voice. His dancing continues to improve as he works hard and practices with the other members and individually.

He was roommates with SUGA. When BTS changed roommates, Jin and SUGA stayed together. SUGA stated that he 'couldn't have a more perfect roommate'. They are currently no longer roommates in the new dorm they live in.

On Idol King Of Cooking, Jin was supposed to go to the final round. However, due to their conflicting schedules, someone else took his spot in the finals.

During earlier eras, he was nicknamed Ctrl + V because he was the only one who was able to control Taehyung (V).

The best way to make Jin feel despair is to take away his food and his Nintendo.

His favorite color was pink. In a 2017 interview, he stated that it is now blue.

His favorite number is 4. In Army 5th Kit, he stated that his new favorite number is 2.

His favorite foods are lobster, steak, naengmyeon(Korean noodle dish), mulhoe.

He likes anime, Disney princesses, MapleStory and Super Mario action figures, and Nintendo games. He is known as worldwide handsome, and being the worldwide cutie guy as he introduced himself on the Ellen Show in 2018.

He has a habit of blinking his left eye when he's hungry.

He is able to do The Exorcist's "spider-walk" (walking with his waist bent).

He describes himself as Hidetoshi Dekisugi from Doraemon.

His ideal type is someone who will be a good wife, good at cooking, and is nice.

In ten years, he wants to be Sergeant Kim Seok-jin in the Bangtan A.R.M.Y. After that, he wants to be a man that mothers would like watching on TV.

He once made seaweed soup for j-hope, who became speechless since he thought it tasted like his mom's soup.

He always goes to the gym with Jung Kook. According to the other members, he has the best body and face in the group.

He is in charge of the kitchen and cleaning up the dorms.

He has a driver's license.

When he eats, he has a habit of smelling it first. He rarely uses wooden chopsticks-- he always carries his own because he doesn't like the smell of the wooden chopsticks.

He's bad at lying.

He can't watch horror movies.

As a child, he wanted to be a detective. V described him as a Crane (두루미).

He wakes up two hours earlier than the other members.

The Chinese A.R.M.Y fans stated that Jin sounded the most Chinese out of the Bangtan Boys when they spoke Chinese.

He has recently revealed to have two flying squirrels as well, along with his Sugar Gliders, however he has not formally posted about them on any social media.

He chose V as the member he is closest to. He wants his first child to be a girl and second to be a boy. He wants to give a noona (male's term of addressing for an older female in Korea) for his son because a noona will give him pocket money as his hyung (older brother) always took his pocket money.

He named his future children-- the girl to be Yu-sun (유선) and the boy to be Yu-bi (유비). He is the first K-pop idol to get 100 million hearts on V-live during his birthday live on 2017.

He likes to blow flying kisses to ARMY.

His motto in life is: "Let's live freely."

Jin has very broad shoulders, measuring at 60cm (23in) in width.

Jin’s favorite weather is Spring sunlight

Jin also enjoys looking at photographs and recipes.

Jin started Super Mario when he was five years old and MapleStory in seven grade and still faithfully play them. He think Super Mario characters and the monsters in MapleStory are extremely cute.

Jin is really confident with others and can communicate well now, but previously, he stated he had very low self esteem and that A.R.M.Y's and the rest of BTS helped him to overcome it.

Jin was an MC for the MAMA awards in 2017 alongside EXO's Chanyeol and Red Velvet's Irene.

Jin always wins staring contests.

Jin, Jung Kook, and Jimin drink together occasionally.

Jin's BT21 character is a white alpaca wearing a red neckerchief named RJ.

Jin is very athletic, his sports are snowboarding, golf; he can also do wake-boarding, tennis, surfing, scuba diving and a lot more.

Jin's favorite animal is an alpaca.

Jin's laugh is very distinctive and is known as the 'Windshield Wiper' laugh (i.e the sound of when glass/windows are being wiped clean.)

Besides from j-hope, Jin is the second member who gets scared very easily.

When Jin is embarrassed or mad his ears will turn red.

Jin's favorite hair color is pink. (Buzzfeed Puppy interview 2018)

Jin has prescription glasses but rarely wears them as they make him feel insecure. He prefers to wear contact lenses instead, but his eyes get easily irritated from wearing them.

Jin is the strongest member in BTS with Jung Kook being the second. (Jin is the only member who can lift and support Jung Kook's weight despite Jung Kook being the heaviest.)

Jin cut his jeans on camera once because they were “too long.”

Jin uses a pink keyboard to play computer games.

Jin’s Spotify playlist is called: Jin’s GA CHI DEUL EUL LAE?

Other members said that Jin has the longest legs in BTS.

Jin and Jung Kook bicker a lot. A taxi driver once thought that Jung Kook and Jin are twins because of their non-stop bickering.

Jin said that looking at bugs isn’t scary, but if they get on his body, that’s really scary.

Jin dieted for a year, eating only chicken breasts.

Jin used to work at a strawberry farm.

He was named one of the idols that had a "Funny And Surprising Way" of getting casted.

Has a total of 2 ear piercings. (2 on the left)

During BTS' trainee days, Jin used to take Jung Kook to school everyday and invite Jung Kook over to his family's house to have dinner with his family.