To the Second Winter
Myne learns from Frieda that the illness she has is called the Devouring, and that it will flare up if she ever feels anxiety or loses hope. Almost on cue, her fever starts acting up...
Aired 05/12/2019EP 10 - To the Second Winter

Ascendance of a Bookworm
When a sickly young girl suddenly becomes obsessed with inventing new things, her family and friends are all puzzled. "What has gotten into Myne?" they wondered, never dreaming that the answer is not a "What" but a "Who": Urano Motosu, a book-loving apprentice librarian who died in an earthquake in Tokyo who somehow found herself in Myne's body! And since Myne's world is still in a medieval stage, where books can only be owned by the elite, the new Myne intends to do everything she can to bring her beloved books to the masses in the time she has left.
(Source: Sentai Filmworks)
Note: The first episode was included in a bonus DVD that came with the limited edition of the 8th volume of Part 4 of the light novel that was released on September 10th, 2019 prior to its TV premiere.