Shoujo wa Shoka no Umi de Nemuru

is a Japanese light novel series written by Isuna Hasekura, with illustrations by Matsukaze Mizuren. The series began publication on February 10, 2015 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Shoujo wa shoka no umi de nemuru is a series that occurs within the world established in the Magdala de numure series.

Synopsis
Phil, a book-loving boy who wants to become a book dealer, visited the Grandon Monastery with his fellow Jad and Inquisitor Abrea at the behest of his own Zeedel Company. Phil is excited about his first job as a book dealer, buying valuable books from the monastery.

But what was waiting for him in the monastery library was Claire, a beautiful girl who hates books. What is a secret that she hides as she tries to drive Phil and others hard? Introducing the supreme Vibrio Fantasy for everyone who loves books!