Tsukishiro Nina has just arrived in the beautiful country of Ruberia, and its charming denizens and lush scenery are like a fairytale come true. Yet suddenly, Nina finds herself set upon by strange attackers until she is rescued by a mysterious young man with a steely gaze, calm disposition - and wolf ears! Whisked away into a grand adventure, Nina must keep her wits about her if she's to learn the secret of Abigaile Castle in a magical world where everyone either makes her blood boil or her young heart race!