Lee Jae-in to appear in short film 'June's Christmas' at Chuncheon Film Festival

Lee Jae-in is heading to Chuncheon. On June 28, the 21-year-old posted a poster for the short film 6월의 크리스마스 (June's Christmas), tagging the festival with the message "See you in June's Christmas!"

The short comes after back-to-back lead roles in 2025. She played Park Wan-seo in 하이파이브 (High Five) and starred in 콘크리트 마켓 (Concrete Market). Next up: the 2026 drama 스프링 피버 (Spring Fever), where she'll play Choi Se-jin.

Lee Jae-in debuted in 2012 on tvN's 노란복수초 (Yellow Anemone), coming from Taebaek City, Gangwon Province. Awards followed fast. She took the 39th Golden Camera Award for Best New Actress for a dual role in 사바하 (Svaha) — playing both Lee Geum-hwa and the creature. 어른도감 brought her the 6th Wildflower Film Award for Best New Actor. Her lead as Han Se-yoon in SBS's 라켓소년단 (Racket Boys) won the 2021 SBS Acting Awards Female Youth Acting Award.

She's signed to Youbon Company. Her fan club goes by '조인' (Join). Off-set: younger sister Lee Jae-eun, a cat named Siru, childhood taekwondo training, self-taught game development, and a well-documented habit of rewatching The First Slam Dunk. (The range is real.) Her playlist runs heavy on Nirvana and alternative rock.