Rebecca Miyamoto, an 11-year-old child prodigy, accepts a teaching job at Momotsuki Gakuen (Peach Moon Academy), a high school that can be best described as 'bizarre'!

It's 1742 in Paris, France. Louis XV is still king of France. A woman was found dead in a coffin floating in the Seine River. The brother of the deceased woman is D'Eon, who is determined to find the murderer of his sister: Lia. But as D'Eon investigates and tracks down the killer. He soon discovers that strange and supernatural things are involved with this series of...