Yoo-na thought her worst day couldn't get any worse-betrayed at work, forgotten on her birthday, and plagued by a lifetime of feeling overlooked. Alone in her despair, she scribbled a desperate wish in her diary: to travel ten years into the past and change her life. But wishes, especially desperate ones, sometimes have unexpected consequences. When moonlight bathes her tear-stained words, Yoo-na is thrust back to her high school days, a time of dreams and innocence she thought long gone. Confused and disoriented, she finds herself face-to-face with her younger self, a bright-eyed girl with hopes untouched by the harsh realities of adulthood. Now armed with the knowledge of her future and the opportunity to rewrite her past, Yoo-na embarks on a journey to reshape her destiny. But altering the course of time comes with its own set of challenges and sacrifices. As she navigates the complexities of friendship, betrayal, and self-discovery, Yoo-na discovers that some wounds run deeper than she ever imagined, and that changing the past may not guarantee the future she desires. Join Yoo-na as she unravels the mysteries of time and the human heart in this compelling tale of redemption, second chances, and the quest for true connection.