Stella is born in Toronto, Canada as the oldest child in her small, close knit family. She grew up singing and dancing with her friends. At school, she was one of the popular girls and one of few Asians at school. Boys wanted her and girls were jelous of her beauty and talent. She loved to sing and dance. Her parents saw that but feared that she won't be able to achieve her dream to be on stage. That didn't stop the young Stella. She moved to South Korea when she was fourteen and lived with a family member. After a few months after moving there and making new friends at school, she was accepted into a large company. Stella, now known as Sijun, started training at the company. After a year and a half, she debuted in a five piece group called Nova. She was the triple threat and visual. Stella loved it. She was very happy and proved to her parents that she could perform on stage.