Lisa is a student at Seoul University who is pursuing a degree in fashion design. She is clever. She is, however, a fool when it comes to love. She had taken a step too far. Jungkook, a serious man who can hide his feelings well, was a childhood buddy to whom she fell too strongly.

Lalisa Manoban is a poor girl who receives a scholarship to attend a private school. She has three rich friends, but she has never taken advantage of them. She is sweet, friendly, and respectful to all. Jeon Jungkook is a wealthy man who attends his own school. He is accompanied by three hyungs that are well-known on their school's campus. He has a cold heart and does not pay attention to what is going on around him.

❝That's good. My heart belongs to Rosé anyway.❞

Jeon Jungkook lives a double life. He's a driven, hard-working and efficient secretary to the CEO of a well-known entertainment company. But he has a secret. He's actually a devoted fanboy of Lee Ji Eun-an idol singer with the stage name IU. In addition to this, he's also a famous fansite manager called "Ji Eun is My Life". Things start to spiral when the ex-ballet star Lalisa Manoban--a cold, no-nonsense type of girl, stepped in her half-brother's place as the temporary CEO of the company. EST 2019 Inspired by the hit tvN drama: Her Private Life