Moon Byulyi is an artistic genius working as the head of the creative team in Flanéur agency, an up and coming advertising agency spearheaded by another creative visionary, Kim Taeyeon. Her childhood was marred by abandonment and tragedy; she was left by her parents at an orphanage at a very young age, but she managed to nail a scholarship to the prestigious Seoul National University (SNU), where she met her long life best friend, Kim Yongsun a.k.a Solar, her mentor who takes her as a protege, Kim Taeyeon, and her seemingly love of her life, the shy, troubled artist, Jung Wheein. Despite a struggling childhood, Byulyi strives in her job. Soon she discovered and began mentoring her protege, the charming Kang Seulgi, who used to be her junior in SNU. Both Byulyi and Seulgi work hand in hand at Flanéur, bringing in big-name clients and winning every pitch with their impeccable ideas. One fateful night during the companys year-end party, the ever-introverted Byulyi sneak out the rooftop when she meets a strict-looking but remarkably beautiful women.. Little does Byulyi know, this fateful night becomes a catharsis of many dramas in her life..  Foreword "Holy shit! You scared the hell out of me. What are you doing here?", Byulyi was incredibly flustered when she sees a gorgeous woman chilling out at her usual secret spot. The woman stood still for a second, gazing at Byulyi. She is remarkably beautiful; pale white and glassy skin, piercing eyes, a jet black long wavy hair that frames her face perfectly, and thin lips with a hint of a sarcastic smirk. "Is it not a public area? Are you the only one whos allowed to be here?" the mystery woman snarkily answer to Byul. Byul was dumbfounded, who is this mystery woman talking back to her like that? Doesnt she know shes The Moon Byulyi, the creative God of Flanéur agency?