Katerina Vancon, a seemingly ordinary young woman, finds herself facing an unexplainable transformation. Standing in front of the mirror, she sees a stranger staring back—a girl with hazel eyes, long silver-grey hair, and freckles. Confused and disoriented, her mind floods with memories that don't belong to her. For two hours, Katerina tries to piece together what has happened, searching for answers.
Her thoughts drift back to two days prior, on her 20th birthday. The celebration was lively, and amidst the festivity, her mother handed her a mysterious black box. It was a family tradition, she was told—a gift given to every girl in the family when they turn 20. However, her mother cryptically added that for two generations, no one had ever been able to unravel the mystery within the box. Intrigued, Katerina was left pondering its purpose as her mother laughed and walked away.
That night, after the party had ended, Katerina remembered the box and decided to open it. Dusting it off, she discovered an old, heavy book inside. Curiosity turned to astonishment as she began reading. The book revealed shocking secrets about her family's past, particularly their connection to another family. The details were both fascinating and unsettling, pulling Katerina into a deep trance of discovery. She read continuously for two days without eating or resting, finally collapsing in exhaustion with the book beside her.
When she wakes, she's in an entirely different reality. Staring into the mirror, she no longer recognizes herself. Her bewilderment is interrupted by a knock at the door. A young woman in a maid's uniform enters and addresses her as "Lady Zientek," a name Katerina has never heard before. The maid is irritated by Katerina's confusion, reminding her that today is an important event—the day she and other ladies of noble birth will officially come of age.
Overwhelmed by questions, Katerina asks where the ceremony is being held, to which the maid replies curtly, "The Royal Palace." Pressed for time, the maid urges her to stop asking questions and start preparing. Katerina is left in a state of shock and urgency, unsure of how she ended up in this strange life but knowing she must quickly adapt to the new reality unfolding before her and just like that she became Charlotte Zientek the only daughter of the Zientek family.