A girl from the modern world slips into the body of Niveia Aerber, the main character of the fantasy novel she was reading. To survive in Erathil, a world full of betrayal and monsters where she was destined to meet an early death, the new Niveia embarks on an adventure to escape from her fate. The old Niveia was set to become the next Priestess to serve the Grand Temple, but not the new Niveia. Instead, she runs away from the temple, from her archrival, Rosanna, and her fiancé, Duke Aetius Timothero. Along the way, she enlists the help of Prince Caeles, who is also on a mission of his own - to find out which noble families are planning an uprising against his kingdom, including Niveia's family. In this chaotic turmoil of love, loyalty, and treason, can Niveia create a better future for herself, and more importantly, can she ever return to the real world?