There were many famous plum blossom soul figures in Chinese history.
Lin Daiyu, the protagonist of the Dream of the Red Chamber, was known as the " Plum Soul ". She was a smart, kind, and strong woman who became Lin Daiyu because of her family's decline and the death of her loved ones.
2. Lady Mei-During the Three Kingdoms period, there was a lady named Lady Mei in the State of Wu. She was a multi-talented woman who was proficient in music and painting. She was especially good at plum blossoms and was known as "Madam Mei".
3 Plum Blossom Female General-During the Sui Dynasty, there was a female general named Plum Blossom Female. She led the army to many victories and was known as the "Plum Blossom Female General".
4 Plum Girl-During the Southern Song Dynasty, there was a plum girl who was a student at the Meijia Girls 'School in Xihu, Hangzhou. She was called "Plum Girl" because she loved plum blossoms. Her poems and plum blossom paintings were highly praised.
5 Meiling Goddess-Legend has it that during the Tang Dynasty, there was a Meiling Goddess who was known as the "Meiling Goddess" because she saved the people. Her beauty and kindness were deeply loved by people, and many believers still prayed to her for blessings.
I'm not sure specifically as I haven't read it. But generally, a novel could be about relationships, personal growth, or some sort of adventure. Maybe it focuses on a particular family's experiences during a specific period at night.
Perhaps mystery is another theme. A book of stories around this time might be full of mysterious events, like strange occurrences during the night of All Souls. It could explore the unknown and keep readers on the edge of their seats.
One common theme is the struggle against powerful forces. In both Dark Souls and Fate Stay Night, the characters often face overwhelming odds. In fanfiction, this is often amplified, with the characters from one universe having to face the challenges of the other.
People interested in folklore might also be the target readers. All Souls Night has a rich folklore associated with it across different cultures. So those who like to explore such cultural stories would be attracted to this book.
It's possible that there is a protagonist who is on a journey of some sort, perhaps a physical journey through a dangerous place or a more emotional and psychological journey. There might also be a supporting character, like a wise old figure who offers guidance or a love interest who gives the protagonist an extra reason to persevere through the 'darkest night'. Without reading the novel, it's all speculation though.