A modern-day book lover who is reincarnated as a sickly young girl named Myne in a medieval fantasy world where books are rare and only available to the nobility. Her primary goal is to make books so she can read again, which leads her and her friends to invent new technologies and navigate a harsh class system that views her as a poor commoner. The season is a slow-paced, slice-of-life story focused on her journey to bring reading to her new world and her struggle with a fatal disease called the Devouring.