Jeon was born on July 18, 2011 in Seoul, South Korea. She started acting at a very young age of 5[2] when she went to a local music academy, when her mom recognized her acting talent.[3] She took some guest and minor roles in several Korean movies and television series such as Juror 8 and Hellbound,[4] before getting international recognition for playing the childhood Sunja in Pachinko. Her role in Pachinko was praised as a delightful performance.[5] She was only 10 years old during the filming, and she was immersed in the character by understanding what the Koreans had experienced during the Japanese colonization.[6] She cast the childhood Sunja character as observant, precocious, and have a lot of curiosity on what happened around her.[7]
After Pachinko, she worked on some other Korean television series such as Green Mother's Club and Secret of the Lightning Cloak, and signed an exclusive contract with Saram Entertainment[8] before auditioning for the role of Choi Ro-hee in The Kidnapping Day. She won the role by overcoming a competition rate of 500 to 1[9] and surviving 5 rounds of auditions. She was praised for her delicate acting skills that is unusual for a child actress her age[10] and for her ability to maintain a good chemistry with the lead actor, Yoon Kye-sang.[11][12] Yoon praised her for acting professionally like an adult.[13] Another fellow actress in the drama, Seo Jae-hee, also praised her, stating that Jeon has a pure, lovely, wise and innate personality.[14] For her role in The Kidnapping Day, she was awarded the "Best Child Actress" at the 2023 APAN Star Awards[15][16] and the "Best New Actress (Television category)" in the 2024 Baeksang Arts Awards.[17][1]
Between October 8 and November 19, 2023, together with Seol Ga-eun, Jeon played the Suzu role in Sea Village Diary, a theatre play based on a Japanese film called Our Little Sister, directed by Hirokazu Kore-eda.[18]
^ abcLee, Seung-hoon (May 7, 2024). '무빙'→'서울의 봄' 대상..'파묘'는 4관왕 [제60회 백상예술대상][종합] ['Moving' → 'Seoul Spring' Grand Prize..'Buried Grave' wins 4 awards [60th Baeksang Arts Awards] [Comprehensive]] (in Korean). Star News. Archived from the original on May 7, 2024. Retrieved May 7, 2024 – via Naver.
^입력: 2023.08.07 10:01 (August 7, 2023). 윤계상, 유나 납치한다 (유괴의 날). sports.khan.co.kr (in Korean). Archived from the original on August 22, 2023. Retrieved October 25, 2023.{{cite web}}: CS1 maint: numeric names: authors list (link)
^Hwang, So-young (April 8, 2024). 60회 맞은 '백상예술대상' TV·영화·연극 후보 공개 [60th 'Baeksang Arts Awards' TV, Film and Theater Candidates Revealed] (in Korean). JTBC. Archived from the original on April 8, 2024. Retrieved April 24, 2024 – via Naver.