HeeJin (Hangul: 희진) is the first revealed member of LOOΠΔ and a member of its first sub-unit, LOOΠΔ 1/3.

She was born as Jeon Hee Jin (Hangul: 전희진) on October 19, 2000 in Bundang District, Seongnam, Gyeonggi Province, South Korea.

She debuted on September 26, 2016 as a member and subsequently released her solo single album HeeJin on October 5, 2016.

Early lifeEdit

HeeJin was born as Jeon Hee Jin on October 19, 2000 in Bundang District, Seongnam, Gyeonggi Province, South Korea. She is the youngest of three daughters in her family.

HeeJin's decision to become a singer occurred in middle school. At one time, both her sisters had similar dreams to hers, but they remained unfulfilled. She has stated that one of the reasons she became a singer was to make her sisters’ unfulfilled dreams come true and has cited her sisters as being her biggest supporters.

In pursuit of her goals, HeeJin traveled long distances in order to attend a dance academy. Her father began discouraging her dreams of becoming a singer after she was rejected at 20 different auditions. However, in 2015 she was cast through social media by BlockBerryCreative and became a trainee. HeeJin trained for 1 year before she was selected to be the first member of the agency's upcoming girl group.[1]

On January 7, 2019, HeeJin graduated from Hansung Girls' High School alongside HyunJin.


2016 : Pre-debut RevealEdit

On September 25, 2016, a video teaser titled "LOONA's 1st Member 'HeeJin' SeoulTeaser" was released on YouTube featuring promotional posters of HeeJin in the streets of Seoul.

On October 2, 2016, a video teaser titled "Paris" to tease the acoustic mix of ViViD was released on YouTube featuring HeeJin while filming in Paris.

HeeJin is the only member to not have a "Who's Next Girl?" teaser image because she is the first member and hence it was not necessary.

2017 : MIXNINEEdit

In October 2017, HeeJin, along with fellow LOOΠΔ members HyunJin and HaSeul, auditioned for survival reality show MIXNINE. Having passed the audition, she became a contestant as a representative of her agency and idol group.[2] HeeJin made it until the final episode, but was eliminated when the boys' team won against the girls', and hence ultimately did not get to debut.[3]

2018 : AVAJAREdit

In March of 2018 Blockberry Creative announced HeeJin has signed an advertising model contract with Korean cosmetics brand AVAJAR. She advertised the company's products along with Kyulkyung of PRISTIN and Cheng Xiao of WJSN (Cosmic Girls). Shortly afterwards a commercial film featuring HeeJin along with HyunJin, Cheng Xiao, Kyulkyung, and members of Super Junior was released for the brand.[4]

Since 2016 : LOOΠΔEdit

She debuted on September 26, 2016 as a member of girl group LOOΠΔ and subsequently released her solo single album HeeJin on October 5, 2016.

She was later revealed to be a member of its first sub-unit, LOOΠΔ 1/3.

HeeJin was featured in a special version of Singing in the Rain where she covered the rap part of the song.

HeeJin was also featured in Olivia Hye and Go Won's duet, Rosy, where she also covered the rap part of the song.


  • Stage Name: HeeJin (희진)
  • Birth Name: Jeon Hee Jin (전희진; 田姬振)[5]
  • Name Meaning(s):
    • 田 (전/Jeon) means "cultivated field"[6] or "rice paddy".
    • 姬 (희/Hee) means "woman".[7]
    • 振 (진/Jin) means "raise, excite".[8]
  • Nickname(s): Heekki (희끼), Pumpkin Jeon (호박전), Carrot Girl (단군소녀), Jeonnie Jin (저니진), Heettongie (희똥이), Founder
  • Birth date: October 19, 2000 (age 19)
  • Horoscope: Libra
  • Blood type: A
  • Birth place: Bundang District, Seongnam, Gyeonggi Province, South Korea
  • Current residence: LOOΠΔ Dormitory, Seoul, South Korea
  • Roommates: HyunJin, HaSeul, YeoJin, ViVi, Kim Lip, JinSoul, Choerry
  • Family: Parents; Jeon Yi-kyung (older sister); Jeon Yoon-kyung (older sister)
  • Body statistics: 161 cm (height), 46 kg (weight)
  • Education: St. Paul Girls' Middle School (graduated), Hansung Girls' High School (graduated)
  • Languages: Korean (fluent), Japanese (learning), Portuguese (waning proficiency)[9]
  • Position: Undetermined
  • Instruments: Guitar[10], piano
  • Hobbies: Visiting bakeries[11], playing sudoku, calligraphy
  • Likes: Animals, bread[11], scented things, eating alone
  • Dislikes: Pigeons[12][13], messiness, cigarettes
  • Personality: Hard-working, confident, friendly, energetic, optimistic


Single albumsEdit





Year Name Channel Role
2017-2018 MIXNINE jTBC Herself (as contestant)

Web DramaEdit

Year Name Channel/Platform Role
2017 Do You Remember The First Time We Met? Season 1 YouTube Jeon HeeJin (main)
2017 Do You Remember The First Time We Met? Season 2 YouTube Jeon HeeJin (main)
2018 Do You Remember The First Time We Met? Season 3 YouTube Jeon HeeJin (minor)

Music Video AppearancesEdit

Year Name Artist Role
2016 "Around You Original Film Ver." HyunJin Cameo
2017 "Everyday I Love You (feat. HaSeul)" ViVi Minor
2017 "Singing in the Rain (feat. HeeJin)" JinSoul Rapper
2017 "Around You Woomanna Special Ver." HyunJin Minor
2018 "Egoist (feat. JinSoul)" Olivia Hye Cameo

Commercial FilmsEdit

Year Brand Type
2016 High Cut Cosmetic
2016 Innisfree (also on LOONA's Youtube Channel) Cosmetic
2016 The Law of Creation Mobile Game
2017 HANYUL Cosmetic
2018 AVAJAR Cosmetic
2018 LG Q7/Q7+ TV Appliance/Mobile Phone
2019 Hi-Mart Appliance


  • She was the first member to be revealed on September 26, 2016. For this reason, she is also the only member to not have a "Who's the Next Girl?" teaser.
  • She is the sixth youngest in LOOΠΔ, and the third youngest in LOOΠΔ 1/3.
  • HeeJin's role models are Lucia (Shim Kyusun)[5] and Girls' Generation's Taeyeon.[14]
  • In the audition, she sang Lyn’s ‘Ring Tone’ and got accepted.[15]
  • She passed her audition for BlockBerryCreative with a cover of "쩔어 (Dope)" by BTS.[16]
  • Her goal is for LOOΠΔ to become the best girl group in Korea, and to become a singer that others can look up to.[1][13]
  • Her Chinese name in Mandarin would be Tián Jī Zhèn.
  • She likes animals but she is allergic to animal fur.
  • HeeJin enjoys covering boy group choreography.[16]
  • HeeJin's eyebrows are naturally a pale gray color.
  • HeeJin can twist her tongue from side to side.
  • HeeJin revealed that as a trainee, she lived in the countryside and had initial difficulties attending training because she lived over 4 hours away from Seoul, didn't have enough training time and struggled financially with affording transportation.[15]
  • Her nickname Heekki (희끼) is a portmanteau of her name and the word for rabbit (토끼).[13] She originally give this name to the rabbit she met on set while filming her first MV.[17]
  • She has a fear of pigeons.
  • She was the first member to not go by a stage name.
  • Her best LOONA friend is HyunJin.[18]
  • She lived in Brazil for a month as a child.[19]
  • In a contest held by Naver on Hangul Day[20], her handwriting was selected to be made into the font "Lunar Orbit". She participated because Orbits miss her letters.[21]
  • According to the other members, she sometimes sleeps with her eyes and mouth open.She always sleeps late.[22]
  • She's really bad at multitasking.[22] When she does something, she can't really pay attention to what other people say well.
  • She can't really cook.
  • The thing she thinks she does the best in LOONA: charisma on stage.
  • Why is playing Sudoku her hobby? Heejin: "When I was in elementary school, my relative's brother carried a Sudoku book. I opened the book and it was so fun.Finally, my relative bought me the same book. I have had a hobby since then."[23]
  • She likes solving sudoku and she got Go Won into sudoku.[24] She sometimes stays up all night solving sudoku, sometimes with Go Won next to her, also solving sudoku.
  • She's watched/read Naruto.
  • She's good at drawing.
  • Her treasures: her Stitch doll/plushie (from Lilo & Stitch), Hyunjin[25]
  • She carries around her Stich plushie almost everywhere.
  • She also has a Stitch pencil case.[26]
  • HeeJin & HyunJin became friends with ITZY's Ryujin during MIXNINE.
  • She was voted as the best visual in MIXNINE.
  • Lots of people first thought she wasn't fully Korean (visually speaking)
  • When they first joined Yves and Go Won were pranked and were told by the staff that HeeJin's grand mother was Russian. Yves believed that lie for a week, because she thought Heejin's nose was attractive and not typically korean.
  • Another nickname: "Jeon Hwi Hyeol"
    • There’s a popular and apparently a bit cringy web-novel called <세계 서열 0위 포커페이스 반휘혈> and the main character’s name is 반휘혈 (Ban Hwi Hyeol) who’s the best fighter and coolest kid in his high school.
  • Fact In Star - Heejin TMI:[27]
    • The LOONA solo she wants the most is: Egoist. She really want to do a strong performance, especially the backroll.
    • To practice her expressions, she: used bathroom mirrors before and after washing.
    • Last book she read: "Love like you've never been hurt before" (by poet Ryu Shiva). She first read it in middle school but didn't really understand it at the time. Reading it again recently, she thinks it helps in many ways in her life, so she recommends it
    • She clears stress by: eating spicy food. She can't handle spiciness that well, but to challenge herself, she eats spicy food with the members.
  • According to her:[28]
    • Team Position: Clumsy-hands, the organized one, cure-all hands
      • "clumsy hands" might be because she's a bad cook.
    • Charming Point: Danmuji-like eyebrows (thick eyebrows), penguin-like lips
    • Favorite Baskin Robbins flavor: Chocolate Forest, Dark Choco Knight, Caramel Praline Cheesecake
    • She likes mint chocolate. She's on Team Mint Choco Squad.
  • Songs recommendations:
    • For Chuseok:[29]
      • Loona - Hi High. "This song has a bright and fast tempo, so if you knead songpyeon while listening to it you will be able to make them very quickly. "Hi High" on repeat!"
      • AkMu - 시간과 낙엽 (Time and Fallen Leaves). "I think this song represents the sensation of autumn well. Autumn is the season of Chuseok, so I think it'd be good to feel the autumn with this song as you make songpyeon."
    • For Chinese New Year:[30]
      • Heejin: Kwon Jin-ah - 스물 (20) "I think there's a lot of pressure and burden at the thought of turning twenty and becoming an adult. But I want to recommend this song because I think it will comfort me and my friends as we overcome those things and run ahead boldly."
    • Profile Rewrite (August 2018)[28] - Orbit 1st anniversary
      • Justin Bieber - Heartbreaker
      • Brown Eyes - Already One Year [벌써 일년]
    • Jeremy Passion - Nothing.
    • Sean Mendes & Camila Cabello - Senorita[24]
    • Lucia's songs (indie artist): The Moon and Sixpence[31] ; Precious Person; Soulmate ; [32]

See alsoEdit

Check out the gallery of HeeJin and her character in-universe!



v - e
HeeJinHyunJinHaSeulYeoJinViViKim LipJinSoulChoerryYvesChuuGo WonOlivia Hye
Solo singles
Mini albums
Repackage albums
Digital singles The Carol 2.0favOriTe
Exclusive releases
Concerts LOOΠΔbirth (2018) • LOOΠΔ Concert [LOOΠΔVERSE] (2019)
Other LOOΠΔ x Study Group (2018) • LOOΠΔ Cinema Theory: Up & Line (2018) • LOOΠΔ Premier Greeting: Line & Up (2018) • LOOΠΔ Studio (2018)
Dramas WoomannaDating Class
Shows Insane Quiz Show Season 2The GashinasShows Appearances : BackstagesInterviewsLivestreamsRadio Shows
Covers DanceVocal
Others LOONA TVChoreographyFancamsLive PerformancesMiscellaneous VideosMusic VideosTeasers
Characters HeeJinHyunJinHaSeulYeoJinViViKim LipJinSoulChoerryYvesChuuGo WonOlivia Hye
Locations EarthCosmosEden
Analysis Music Videos ViViDAround YouLet Me InI'll Be ThereThe CarolKiss LaterEveryday I Love YouEveryday I Need YouEclipseSinging in the RainLove Cherry MotionnewHeart AttackOne & OnlyEgoistfavOriTefavOriTeHi HighButterfly
Cinema Theory ViVi Letter to Hong KongSee SawStarlightI Like You More Nowone
Teasers Reveal Teaser (OEC)XIXXIIXXIIIXXIVXone
Other Lore Möbius Strip TheoryThe Color TheoryCultural ReferencesdlrowehtanoolPhases of LOONAMinor theories
v - e
LOONA 1-3 Logo
Mini albums
Characters LOONA 1/3 : HeeJinHyunJinHaSeulViVi
Locations Earth
Analysis Love & LiveSonatineLove & Live 2.0
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