"It had to be you! You used a Command Spell to brainwash my beloved Jeanne d'Arc!"
For some reason, the robed weirdo who had seemed fairly mild-mannered suddenly became agitated. He raised the book bound in human skin high over his head. "...Give her back to me!"
Along with that gesture—
A whole host of strange rustling sounds suddenly came from all around them.
"Bugs again?"
Kariya Matou frowned the moment he heard the sounds and immediately went on guard. But he quickly realized he had guessed wrong, because the things emerging around them were far more terrifying than bugs. They were a mass of horrific creatures writhing madly, densely surrounding everyone.
"What... kind of ghost-level thing is this?"
Kariya Matou's pupils contracted slightly. "Familiars? But there are far too many of them, aren't there?"
"Sh-Shirako..."
Little Rin Tohsaka fearfully hid behind Fang Mo.
"So things really got even more messed up?"
Seeing the other side summon a huge swarm of monsters, Fang Mo rubbed her forehead. The butterfly effect she had caused was apparently growing more and more severe.
The lunatic across from them was named Gilles de Rais. In life, he seemed to have been some kind of French marshal, and he had been deeply infatuated with Saint Jeanne d'Arc. But everyone knew what France was like... even its king had been an idiot, so Jeanne d'Arc had naturally been burned at the stake.
Gilles de Rais had gone mad because of it.
Then he began studying black magic in an attempt to revive her.
In this Holy Grail War, he had been accidentally summoned by that serial killer mentioned earlier.
Neither of them had much interest in the Holy Grail. All they did all day was study how to torture and kill children. But during that time,