In the 15th century, amidst the turmoil of the Hundred Years' War over the French throne, Montmorency, the son of a noble, delves into the worlds of magic and alchemy at a prestigious knight academy. However, after France suffers a devastating loss at Agincourt, the institution is shut down. Facing ruin and becoming a fugitive, Montmorency, who has just begun his journey as an alchemist, crosses paths with a mysterious village girl named Jehanne.
