Repent Walpurgis

is a Japanese light novel series written by Kouhei Kadono, with illustrations by Kouji Ogata. The series began publication on August 10, 2008 by ASCII Media Works under their Dengeki Bunko publishing imprint.

Synopsis
Nagi Kirima ──She is called the Witch of Fire. An ally of justice who fights for people in secret. But no one knows her feelings.

The pain in my heart, and the hidden destiny. Even as Nagi continued to fight against the evils hidden in everyday life and the synthetic humans of the reconciliation mechanism that monitors the world from behind, further evils were approaching her.

When Kiyoshi Oriki, a girl who was once saved by a calm, encounters a strange shadow, the nightmare begins-a witch war that swallows everything. "Justice is just a joke. True existence transcends that. Mocking good and playing with evil-that's my beloved nemesis, the witch Walpurgis. Soon I We will fight for the future ..."

How will the other witch who smiles in the dark lead the fate of Nagi ...?

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