We have a new anime of the novel Mushikaburi-hime ( Bibliophile Princess ). According to information, the animation is from the Madhouse ( One Punch Man ). Official Website .
Therefore, it is directed by Tarou Iwasaki (Amaama to Inazuma), and Mizuka Takahashi (Overlord III) designs the characters.

Synopsis:
When book-loving Lady Elianna sees Prince Christopher – her betrothed in name only – romancing another noble lady, she realizes the recent rumors must be true. The prince has someone he truly loves, which means the engagement annulment is inevitable and fast approaching. What she doesn't realize is that this is just a surface ripple - one of many where the truth runs deeper, in a conspiracy that surpasses her imagination!
Finally J-Novel Club has been publishing Bibliophile Princess manga adaptation by Yui Kikuta .
Furthermore, Mushikaburi-hime is expected to premiere in 2022.