HyunJin (Hangul : 현진; Japanese : ヒョンジン, Hyonjin) is the second member of the girl group LOONA.
In the group, she's represented by a cat and the color yellow. In LOONA 1/3, she is associated with the location “Tokyo, Japan”.
- Her nickname HyunJin-Bot stems from her robot like movements during the filming for the "Around You (다녀가요)" MV. She also talks like a robot at times.
- Apart from the nicknames from fans and members, new nicknames she'd like to give to herself: she wants to be called a baby.
- Her other nickname of BreadJin is just for the fact that she likes bread, but she has a very serious face when analyzing the flavors, even for breads that she likes a lot.
- What people love about HyunJin: "Her big eyes", "Her goofiness", "Her pretty face", "Long arms", "Her voice"
- She went viral for her barefaced visuals.
- Yves compares HyunJin to a drink: "You know when you go to buffets, they offer you free refills on soft drinks. So then you can get a big glass and mix up Coke, Fanta, Sprite, all in one. She's like that, a really fizzy drink. It's because she's unique."
- The other member describe her as "Unique", "Like from another world", "Nobody knows", "Can't tell", "She gets excited when we are not" 
- She was tested with the same MBTI as Kim Lip: ESTJ, which really surprised people. In July 2021, she rechecked and has changed to INTJ. That being said: She took the tests from 16 Personalities, which is prone to mistype Intuitive users since the questionnaire tests each letter almost in a vacuum.
- She can catch well, even to the point that she can catch dolls with her legs.
- She isn't in the Positivity Line because she has a highly guarded personality off camera. and being emotionally unexpressive.
- Her role model is Gong Hyo-Jin.
- She is closest to JinSoul.
- HeeJin considers her as her best LOONA friend.
- She often speaks in third-person and starts skits with her mother. They also speak in an accent where the sentence often end in 'shya'
- Her brothers and her have a big age difference (11 and 10 years)
- Her second oldest brother, Jinsu, is very fun and jokes around well with her, so with him she can just call him by his name without any honorifics ("oppa") but she can't do that with the first oldest brother (she finds him a bit too scary for that).
- HyunJin's first impression of HeeJin: "I saw Heejin when she entered the company. She looked kind of like a puppy, so I thought she was really cute. So when I first saw her, I thought, 'she's so cute-looking! I want to be friends with her.' [...] The nickname... 'Hey puppy~' is how I called her at first."
|YeoJin||baby||myself in the past|
|Go Won||baby voice||7979 [=friend]|
|Olivia Hye||shy||Professor Kim|
Her first impression of HyunJin
|YeoJin||ressembles a lot of people||a strange and fascinating unnie|
|ViVi||happy ghost||a quick OhMyGodHyunjin|
|Kim Lip||kid who's kind||kid i can't figure out|
|JinSoul||cold girl||amazingly funny|
|Choerry||a ball of sass||8D (8 dimension) unnie with a strange/unique charm|
|Chuu||girl who's like 4-D! (4-D means random)||More of a pure lamb than I thought!|
|Go Won||pure and simple||action leader|
|Olivia Hye||She never talks||She only says what she wants to say|
- Her oldest brother had a dog named "500 Won" (the Won is Korea's currency; 500 Won is about 40 cts)
- One of her brothers has a pet hedgehog. He's had it for 5 years (191105 VLIVE).
- Her second oldest brother is currently (191105 VLIVE) raising a puppy he named Charles.
- In third grade, she raised a puppy for about 2 years. It was mutt/mixed breed dog and looked a bit like a Jindo dogs. Her uncle brought it home and she named it "Dia", hoping it would have a very bright life and shine bright like a diamond.
- When she watches videos about lizards, she finds them cute but wouldn't want to actually raise one as a pet. She's a bit scared of reptiles.
- She thinks it would be neat to have a pet elephant or monkey.
- She trained for three years before the release of her debut single album "HyunJin".
- She participated in the reality show MIXNINE. Her final ranking is unknown but she did make it to the final 18 female contestants.
- Her audition song: CN Blue - Love Light 
- She recited the poem ‘The background colour is getting prettier’ by Kim Hak Joong for weekly poem 1.
- She has tried many sports pre-debut: Basketball, Badminton, Soccer and Table Tennis, but not Volleyball.
- Things she excel in : physical power, long arms, "She's really fast as she's our action-taker", she's fast in doing everything (she eats and moves fast) 
- Exercise she's the most confident: squats
- She's not good with horror movies.
- One of HyunJin's special talents is barking like a dog.
- She has the hardest two-finger slap out of all members.
- She was a champion in shot putter back in 5th grade.
- She can play three instruments (guitar, piano and ukulele).
- She is very good at tongue-twisters.
- Due to her physical power, she can lift YeoJin and pick her up like a baby.
- She even has a protein-rich diet like an athlete in the off-season.
- Like HeeJin, she is a gourmand in the sense that she has a lot of knowledge in terms of food.
- Airpods name: "ong-ae Kim" (from her nickname "Aeong" and her family name)
- HyunJin really likes bread, to the point of being called a bread-holic.
- In one case, she said she liked bread more than high-quality sushi provided by the CEO of BlockBerry Creative (BBC).
- She apparently has more bread photos than selfies. If she were to open a social media account, she would spam with bread photos and character photos.
- That said: HeeJin's family had dropped 300K won in a single bakery. HyunJin hasn't revealed to had done something similar.
- She also likes pizza.
- She dislikes spicy foods like Malatang (Numbing and Spicy chilli soup) and pho (Vietnamese rice noodle soup).
- She desires to be in an earring commercial.
- She also likes watching movies on NetFlix, even ones in foreign languages. She watched Chinese ones with Korean subtitles, but often forgets that ViVi can watch them without subtitles.
- Her favorite song is Singing in the Rain.
- She goes to PC Cafes to play video games. She doesn't play the same video games as Olivia Hye.
- She plays Tale Runner and uses the female character.
- Interjections she keeps repeating: "Oh mygat kimchi"
- According to herself:
- Hashtag (that describes her): #Yellow #Aeong
- Team Position: Prankster, aeongie
- Charming Point: Big hands, big eyes, misty voice
- Long-term Goals: Bakery owner, cafe owner, BlockBerry Creative CEO
- Personality: good funny, active
- Strength: "I have good physical stamina"
- Weakness: "I often don't talk"
- Habits: flicking her tongue
- Motto: "Let's live deliciously"
- Hobbies: listening to music, watching YouTube
- She can surpass YeoJin in: stamina, eye size, impressions, hand size
- She wants HeeJin's ability in: putting on sunscreen (consistently)
- Lately she's interested in: dancing & singing (R&B soul, groove), games, YouTube, movies, Americano
- If she were to describe herself with hashtags: #Wanna #Enjoy #Sentimentality #Alone #LeaveMeBe
- Food preferences:
- Pizza bread vs. cream bread: cream bread
- Favorite bread: condensed milk bread
- She loves iced americano, even in the winter.
- She dislikes sweet coffee, like mocha or coffee with syrup flavoring in it. That said, she loves coffee, sometimes even more than bread.
- Cola vs lemon-lime: HyunJin: "Cola!!! But sometimes when I want both I mix them (Cola and lemon-lime). Because I want them together"
- She loves eating snacks on her bed.
- She's not good with spicy food.
- She can't eat: rice noodles, gopchang, malatang, lamb meat.
- She like gaming, especially mobiles games like PUBG and Candy Crush.
- Heading home. While she isn't a homebody, she is a homing pigeon.
- Baek Yerin - Lean On Me
- Billie Eilish - Bad Guy
- CRUSH (feat. ZICO) - Cereal
- CRUSH - woo ah
- DEAN - 21
- HYUKOH - WI ING WI ING (위잉위잉)
- HyunJin - Around You
- Jinsoul - Singing in the Rain
- Kehlani - Piece of mind
- MAX, Felly - Acid Dreams
- Red Velvet - Russian Roulette
- Red Velvet - Oh Boy
- Suzy - Ring My Bell
- Yves & Chuu - Girl's Talk
- For Chinese New Year (2019):
- Song Ji-eun - Twenty-Five (예쁜나이 25살)
- Hyunjin: "I'm not 25 yet, but I did want to recommend this song for myself as I turn 20. I think all of the twenties is such a pretty age, not just 25, and I want to recommend it for others who are turning 20 as well. [N.B. the Korean title is "Twenty-Five, a Pretty Age"]
- Song Ji-eun - Twenty-Five (예쁜나이 25살)
- When you're being nagged:
- HyunJin & HaSeul - Naver NOW radio broadcast “Because I wanted you to listen to this”
- Jeremih - oui
- HyunJin: "Everyone, you can relieve stress by dancing. I recommend this: when you're at home alone at night, turn off all the lights and dance to this song."
- BeWhy - Day Day
- HyunJin: "I listen to this song a lot at the gym. When I hear it while doing cardio or running, this song makes me want to run more. Everyone, if you listen to this, you too can exercise longer."
- Bb4 songs for belting and to check her vocal condition
- Frozen soundtrack - Into The Unknown
- Alicia Keys - New York
- Jeremih - oui
- YeodeokTW. “本月少女失控的漢字名 趴兔.” (Handwritten note from fansign) Facebook. 2016.12.03
- Wiktionary. “金”. Retrieved 2020.03.11
- Wiktionary. “賢”. Retrieved 2020.03.11
- Wiktionary. “晉”. Retrieved 2020.03.11
The last character is illegible. Possibilities also include 眞 (“truth”).
- [Teaser] 이달의 소녀 1/3 (LOONA 1/3) "???"
- LOONA VLIVE — Translation by orrery_nim
- Frequency of the Moon Ep 12 — Translation by orrery_nim
- loonatheworld. “Around You (100% Real Live)” YouTube. 2016.12.18
- LOONA TV #38
- VLIVE: Studio challenge 03
- Celuv TV (February 27, 2019)
- Mom&Dad Tinkle Tinkle LOONA HyunJin
- Frequency of the Moon Ep.4
- Genie Music: LOONA - Answering Machine
- Weekly Idol: self-written profile
- LOONA Studio - 1/3 Hertz (ENGSUB)
- LOONA STUDIO English Subtitle Transcripts (@gointosubbit)
- Orbit 1st Anniversary Chat Event
- Airpods name
- Exclusive Interview
- LOONA - Profile rewrite
- LOONA's Profile rewrite
- HyunJin & HaSeul - Naver NOW radio broadcast “Because I wanted you to listen to this" (ENGSUB) Cite error: Invalid
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- Mu:fully questionnaire (Halloween 2019)
- IDOL RADIO EP.502 (SPECIAL DJ LOONA HeeJin & Yves)
- IDOL RADIO EP.502 recs - explanation thread
- TV Daily: Song recs - Chinese New Year
- TV Daily: Song recs - When You’re Being Nagged