Yoon was born in Stuttgart, Germany, on May 7, 1993, and lived there for six years before returning to Seoul. In 2011, she enrolled as a Chemical and Biomolecular Engineering major at KAIST, one of the South Korea's prestigious science and research universities; she is currently on a leave of absence.
In 2013, she starred in music videos by EXO in EXO Music Video Drama (in both Korean and Mandarin Chinese versions). Afterwards, Yoon made her acting debut in the period drama The Blade and Petal. She has since been cast in increasingly larger roles in television dramas such as Let's Eat (2013) and Secret Door (2014), where she acted as the older version Kim Yoo-jung's character.
Yoon had her film debut in the South Korean-Chinese film Life Risking Romance (2016). The same year, she played a supporting role in tvN's legal melodrama Memory and starred in KBS mini drama The Day After We Broke Up alongside Kim Myung-soo. In 2017, she co-starred in MBC's three-episode mini series Queen of the Ring and sageuk The Emperor: Owner of the Mask.