When Ahn Dohwa finds herself in an unfinished novel as Archmage Reina Heart, she resolves to lie low until the story reaches a resolution. However, unable to turn a blind eye to the abuse inflicted upon the story's villain, Prince Kevenriak Heteroven, she takes the young prince under her wing and begins training him as her pupil, hoping to change his destiny. But when everything starts to deviate from the original story, Reina's resolve wavers... Can she protect everyone's happy ending?