Sunyoung was born in Seoul, South Korea. In her free time, she loves to play golf.

Sunyoung was first introduced to pilates after injuring her knee during personal training. Through her friend’s recommendation, she started taking lessons at a local pilates studio. It did not take long for her to develop a greater interest in pilates. Within a few months, what had begun as a way of simply getting exercise after injuring her knee became a newfound passion for her.

In 2017, she began her search to become a certified pilates instructor. She found the True Pilates studio in New York. There, she trained and passed her assessment under Romana's Pilates Level III Instructor Nancy Jean. Sunyoung continued her training there and received mentoring under Master Instructor Cynthia Shipley and Master Instructor Sari Mejia Santos.

In April 2019, she became a Romana’s Pilates Level V Instructor. Her passion for pilates continues to grow, and she looks forward to sharing her knowledge and the benefits of pilates with clients at Capital Pilates Studio.