Moon Junhui, popularly known as Jun, is a band member of a group called Seventeen, still carries the memories of his first love, Yerin. Kim Soo-min, a single mother lives with her daughter, Eunsoo. She finds her peace in the music and make up. Fate happens to play it's role as Soo-min's company collaborates with Pledis, causing her to work with them. Can Junhui let go of the past? Will Soomin heal his heart?All Rights Reserved