Adashima Haru was born in the lap of luxury. He lives with his mother in the heart of Kyoto, in a spacious home with servants to tend to his every need. Haru has everything a young man could ever want… At a glance, at least. In actuality, however, Haru’s life isn’t so perfect. Haru’s mother is stern and controlling, and she dictates every facet of Haru’s life. She is adamant that Haru should dress like a woman, and she constantly berates him for not behaving like a young lady. Haru's life is dull and uninteresting... until he runs into a thief, Kishou, during a rare shopping excursion. After discovering that Haru is a young man, not a young woman, Kishou breaks into Haru’s home in the dead of night in an attempt to blackmail him – and, in so doing, Kishou’s destiny becomes irrevocably entwined with Haru’s. On that fateful night, Haru and Kishou are set a task: to travel the country slaying monsters, so that they might break a centuries-old curse that has plagued Haru’s family for generations.