
Felia, a country girl from a remote place born to a lord specializing in farming medical herbs, is told that she was chosen as a candidate to become the king's consort. However, she is the "31st" candidate, which means that the king will come to see her only on the 31st of the month. Since the 31st day appears only once every three months, it is unthinkable that the king will choose her as the consort. It turned out that the house she was given from the King has a beautiful garden where she could grow vegetables and herbs. She is unique, strong, and sweet to everyone. Many knights become attracted to this extraordinary consort, and soon the king, too... (Source: Kadokawa)
31-banme no Ohi-sama is a Japanese novel of 534,771 characters, with 13,465 unique words and 2,080 different kanji. Its difficulty rating on Jiten is hard, 3.5 out of 5. The full vocabulary list ranks all 13,465 words by how often they appear, and you can study them on Jiten or download them as an Anki deck.
Here are some of the words that appear most often in this media, as well as a sample of its rarer vocabulary.