Dimensional Codex System: I'm really not a cultist! - Chapter 207 - 206: The Completed Free Method

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Flakes of snow, mixed with the bone-chilling cold wind, blew across the icy plains before them. Countless Undead groaned lowly as they advanced at a slow pace. And behind them stood a colossal, pitch black citadel. Towering spires, like the fangs of a fierce beast, stretched upwards from both sides of the walls piercing the cloudy skies, as if all things in the world were enveloped and frozen by it.

“Roar——!”

A Skeleton Dragon spread its massive wings, soaring through the sky ...