Soyul is Crayon Pop's mascot and maknae (youngest member). She is known for being very energetic and tenacious. She was previously part of a duo called Chic6 Muscats with current labelmate Jina from Bob Girls. On 12 Jan 2015, she released her first debut solo, 'Y-Shirt' which featured Zan Zan's Yang Jungmo. As of 2015, Soyul has enrolled in Sungshin Women's University's College of Culture and Arts as a college student majoring in visual-media acting.