Can anyone tell me about the "Hanabi" and "Spark" series of books?

"Spark" I don't know.

In terms of "Fireworks", there is Meiji's "Cool of the Ivy"

Short-haired Xia Tian's "The Whereabouts of the North Star is Unknown"

Su Mu talks about "The Beauty of the Royal Tomb"

Shui Qianmo "The Girl of Ursa Minor"

Zhang Yunxin "No Fireflies"

Xiao Dan Dingdong "Dream of Flowers Without Makeup"

Yang "Princess Lanling" by Qianzi

...This is a new book or is about to be released. There are many other books, but I think the 20 reward points are enough for the answers~

Don’t ask me why I know so much~