Megaria21 | 윤

Aktor · Lahir 2004 · Gwangju, South Korea

Megaria21 | Shim Ja-yun (심자윤), known under her stage name Yoon (윤), is a South Korean singer/K-pop idol. She is under High Up Entertainment. She is best known as one of the lead vocalists of the girl group STAYC.