Han Yu-jin (한유진; also known as Yujin), born on March 20, 2007, in Daegu, Republic of Korea, is a South Korean singer under Yue Hua Entertainment and WAKEONE. He rose to prominence as the youngest member (maknae) of ZEROBASEONE, a boy group formed through Mnet’s reality survival program Boys Planet, where he ranked 9th in the finale. Han Yu-jin debuted with the group on July 10, 2023, with their extended play (EP) Youth in the Shade, which topped the South Korean Circle Album Chart. Its lead single “In Bloom” also charted on the Billboard Global 200, cementing the group’s successful debut. In March 2024, he made his Japanese debut with ZEROBASEONE’s single "Yura Yura (Unmei no Hana)". Beyond group activities, Han Yu-jin gained recognition as the MC of the music program Inkigayo from April 11, 2024, until September 14, 2025. He has also contributed to soundtracks, including the special track “Running” for I Am A Running Mate (2025) alongside members Kim Ji Woong, Ricky, and Kim Gyu Vin, as well as “Salvation” for Twelve OST Part.2 (2025) with Ricky and Park Gun Wook.