Across a thousand years, "Ban Ji-eum" has undergone 18 reincarnations and now embarks on her 19th life. With the memories of her past lives intact, her mission in this life is clear: to find "Moon Seo-ha," the intense crush from her previous existence. As her memories resurface, Ji-eum relentlessly strives to reconnect with Seo-ha, but the path is far from easy. After resetting her life to meet Seo-ha, Ji-eum finally sets out to meet him.