Arkadian said: It is pretty much impossible to find though.
I've been searching for this series as well, the closest one was about Imperishable Night (Eirin vs Sakuya / Kaguya vs Remilia) but other than that, this one's been nowhere after searching it for 5 months
On the selfish whims of Kaguya, princess of Eientei, Udongein Reisen Inaba is sent to search for a certain book.Now, a very brief summary of the story so far...Udonge gets her master, Yagokoro Eirin, involved and heads for the Scarlet Devil Mansion.This book is the middle part of three.Princess-of-the-NEETDON'T SPEED SO MUUUUUCH...just happened to find it and also just happened to take interest...He... Udonge...The Grand library of The Scarlet Devil MansionMaster, ...in this thing called "Manga"have you any places in mind?