Born on October 8, 2001 in Irwon, Gangnam-gu, Huh Yunjin (허윤진), monymously known as Yunjin (윤진) is a South Korean-American singer-songwriter, producer, and member of K-pop girl group LE SSERAFIM.

In 2017, she managed to pass Pledis Entertainment’s audition held in New York and ultimately began training at the company in 2018, after moving to South Korea.

In that same year, Yunjin participated in Mnet’s survival show Produce 48 as one of the ninety-six contestants to represent Pledis, however she was eliminated on the eleventh episode and placed at no. 26 in its ranking. After the show’s conclusion, it was rumoured that she would debut in a new girl group alongside fellow Produce 48 contestant and label mate After School’s Kaeun, but due to circumstances, the plans were unsuccessful and Yunjin’s future became imprecise.

After focusing on her studies for two years, it was confirmed on August 24, 2021 that she had signed a contract with Source Music, which gave her the chance to be present in future activities in the agency, while on April 9, 2022, Yunjin was introduced as the sixth and final member of LE SSERAFIM, debuting one month later.