ByeolEun, born on March 1, 1996, in Korea, is a singer, songwriter, and YouTuber. She is known for her beautiful and cute appearance, with soulful and clear eyes. Many have fallen for her bright and lovely voice. ByeolEun has showcased her sweet singing skills through various cover videos on YouTube. In September 2020, she launched a crowdfunding campaign for her debut project and album, which led to her official debut on September 21, 2020. This crowdfunded album is limited edition and no longer available, to ensure its exclusivity to the crowdfunding members. Her melodious voice is so pure that she's often called a "Disney voice." Her clear, angelic tone has also made her a popular choice for OSTs for various dramas. She starred in the Breaking Melon Music Chart, a competition program with 5 other YouTuber singers and was the winner of the program. She also competed on Mnet's Artistock Game in 2022 and finished at the TOP6. Her 2025 single "On the Road (길 위에서)," from HUMANICS <The Beginning of Comfort> Part.06, immediately entered Melon’s Top 500 chart at number 25 after its release.