Majutsu Kangoku no Marianne

is a Japanese light novel series written by Matsuyama Takeshi, with illustrations by Parsley. The series began publication on December 10, 2017 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
"In this world like a prison"

"A girl travels with a harlot"

This is an event in an era when "magic" is repelled and cursed.

Marianne, a young criminal lawyer who arrived in the "Wasselhelm Great Prison", a prison for magicians, was given a shocking order from the country. It was a few years ago to capture Remedios, the mastermind of the rebellion, who is still fleeing, along with Gilloa, a man who was captured instigating the rebellion of the sorcerers.

Marianne, who lost her hometown and parents in the battle between the rebels and the kingdom, and Gilloa, a rebel magician and criminal. The two, water and oil, continue their journey while arguing.

Meanwhile, Marianne gradually approaches the "truth" hidden in the rebellion of the former magicians.