2005–2010: Early career as child actress and model Moon was first scouted as a child model for a clothing magazine in Germany while being pushed in a stroller by her mother. In 2006, Moon began her career as
child actress a child actress, debuting in the film
Bloody Reunion. She appeared in several film projects over the following years, providing her voice for
Black House (2007) and appearing in minor roles in
Shadows in the Palace (2007),
Our Town (2007), and
Do You See Seoul? (2008). While in high school, Moon made her mark as the mysterious character Seohyun in Lee Si-young's
Killer Toon, directed by Kim Yong-gyun and released on June 27, 2013. This breakthrough role significantly boosted her prominence. In 2013, she was also cast in the
KBS TV weekend drama ''
Wang's Family'', written by Moon Young-nam and directed by Jin Hyun-wook. Moon portrayed Wang Hae-bak, the fourth daughter of the Wang family, who, despite being a high school student absorbed in her smartphone and rarely communicating with her family, impresses everyone with her exceptional academic performance and resourcefulness. In April 2013, she gained attention for her performance alongside
Baekhyun on
SBS's
Inkigayo, which led her to trend at the top of real-time search terms on various portal sites. Furthermore, Moon was chosen to portray Oh-reum, a ghost with a compelling backstory, in tvN's new Monday-Tuesday drama
Who Are You? which premiered on July 29, 2013. Her character appears in the first two episodes of the series, which stars
So Yi-hyun,
Ok Taec-yeon, and
Kim Jae-wook. Starring alongside
TVXQ's
Changmin, In 2016, Moon played a supporting role in the SBS television series ''
Don't Dare to Dream''. Alongside characters played by
Kim Jung-hyun and
Ahn Woo-yeon, her character formed a trio referred to as the "three musketeers." Ppal-gang was depicted as a teenager who prioritized academics while maintaining a protective barrier against the adults who had caused her emotional distress. In 2017, Moon appeared in a supporting role in the medical fantasy drama
Live Up to Your Name. She portrayed Dong Mak-gae, the loyal assistant to Heo Im (
Kim Nam-gil). Her performance earned praise for her portrayal of a cross-dressing character within the historical setting of the series. That same year, Moon starred in the KBS drama special
Waltzing Alone, which marked her first adult role after turning 20. She portrayed Kim Min-sun, a struggling job seeker and 2009 high school graduate. The character, depicted as older than Moon's actual age at the time, was characterized as an individual facing career setbacks and social difficulties. She played Choi Soo-ji, the daughter of a medical foundation chairman who schemes to seduce Kwon Si-hyeon (portrayed by
Woo Do-hwan). Moon's performance earned her the Excellence Award for Best Actress in a Monday-Tuesday Drama at the
MBC Drama Awards. The role depicts a woman forced to seek financial independence after her wedding is canceled following the collapse of her father's business. In the following year, Moon starred as the female lead in the romance series
Find Me in Your Memory, portraying Yeo Ha-jin, an actress and influencer who has suppressed her past memories. Her character becomes involved with a news anchor (played by
Kim Dong-wook) diagnosed with
hyperthymesia, a condition involving near-perfect memory. It was broadcast on
MBC TV from March 18 to May 13, 2020. Later, Moon took on the lead role of Lim Ju-kyung in the
tvN series
True Beauty, alongside
Cha Eun-woo,
Hwang In-youp, and
Park Yoo-na, which aired in December 2020. Based on the Line Webtoon
Line Webtoon of the same name by Yaongyi, the role follows a high school student who masters the art of makeup to transform her appearance after experiencing bullying and discrimination based on her looks. In 2021, Moon starred alongside
Yoon Kye-sang in the music video for "Cheers," a track by
Lee Chan-hyuk, Colde, and Sogumm, produced by
Code Kunst. Directed by Kwon Oh-jun, the project was part of
Elle Korea's "Reconnect 2021" initiative, a campaign designed to support and encourage youth. In 2022, Moon reunited with director
Hong Jong-chan for the
tvN fantasy-melodrama
Link: Eat, Love, Kill, portraying Noh Da-hyun, a trainee at Jihwayang restaurant who became love interest of Eun Gye-hoon (portrayed by
Yeo Jin-goo), a sous chef at the same restaurant. In the end of 2022, Moon starred in the
JTBC office-romance drama
The Interest of Love. Moon portrayed Ahn Soo-young, a head teller at KCU Bank's Yeongpo branch who maintains a cynical and guarded view of romance. Her perspective begins to shift after she becomes involved with her colleague Ha Sang-soo (portrayed by
Yoo Yeon-seok) who introduces new emotional complexity to her life.
2024–to present: Literary debut and continued screen career In February 2024, Moon debuted as an author with the publication of her first prose collection,
Pata, featuring personal thoughts and reflections. The collection's pre-sale on February 27 reached 2,000 copies, leading to an immediate second printing, a performance noted by industry analysts as a significant achievement in South Korea's publishing sector. In July 2024, publisher Wisdom House announced international distribution agreements for the title with AtmanBooks in Taiwan and ShiraMedia in Indonesia. In her screen career, Moon collaborated with director
Hong Jong-chan for
Daesung's "Falling Slowly" music video, released on March 5, 2024. The project featured a reunion with her
Welcome to Waikiki 2 co-star,
Kim Seon-ho. On July 1, 2024, Moon signed an exclusive contract with management company Peak J Entertainment. Shortly after, tvN confirmed her as the lead alongside
Choi Hyun-wook in the series
My Dearest Nemesis.''''''''
The series is based on Black Salt Dragon
, a webtoon by Hye Jin-yang. The drama is directed by Lee Soo-hyun, known for Delightfully Deceitful'' and written by Kim Soo-yeon. It was produced by
Studio N and planned by
Studio Dragon. The film achieved commercial success, becoming the first domestic romance in several years to surpass two million admissions and maintaining a top position at the South Korean box office through early 2026. ==Endorsements==