An underrated writer named Lee Ga Young, her third book, a romance novel filled with love and exploration, finally reaches completion. Exhausted from the late-night writing session, Ga Young falls asleep at her desk, only to wake up in a world that feels eerily familiar. Ga Young soon discovers she's been transported into the very world she created, specifically into the life of Kang Mi Nah, the main character of her novel. Mi Nah, a young student who got bullied a lot because of her quiet personality, and was destined to meet and be with a young, handsome and popular guy Jung Tae Yong, who has an eyes on her. Now, Ga Young must balance her own identity as a writer with the challenges of navigating Mi Nah's life and protect her with her misfortunes, for her to completely do the things that originally happened to the book she wrote. Can Ga Young keeps the destiny of the two protagonist and will she be able to save Mi Nah from her misfortunes? And Can she find a way to return to her own world or is she destined to live out the story she wrote? This is a story about the power of imagination, the blurred lines between reality and fiction, and the unexpected journeys that life can take.