Joion

Joion (Jo Yu ju / Joyuju, JOY.ON) is a Korean singer songwriter, YouTuber, TikToker and internet broadcaster, and currently belongs to Sunigeurup, the vocal and dance crew of 南Sun (Namsoon). She grew up in a warm family in Pyeongtaek, Gyeonggi Province, and as a high school senior she came through a competition ratio of 721 as a K POP major to be admitted to the Department of Applied Music at Kyungin Women’s University, a background that speaks to her ability. She started streaming on CHZZK but moved to SOOP as of December 11, 2024. She was also chosen as a 2025 model for MAXIM Korea and is known for gravure modeling work including an appearance at Mimaekkon (MISS MAXIM CON). On Instagram (@joy_.on) she describes herself as Model · Singer songwriter and posts in Japanese as well (「日本の皆さんもよろしくお願いします」), showing awareness of her Japanese fans. She also has experience as an underground idol, and writes, composes and arranges her own songs herself, such as Haengbokhago Sipeunge Yoksimilkkayo. Her Instagram following is about 5,862 (as of 2026 05).