Chapter 700: Chapter 700 - 423 Purple Green Demon Refining Heavenly Book_1

The Azure Sky Talisman Paper and Flying Rainbow Ink Talisman, due to their materials being sourced from Red Sandstone City, were mainly produced in the talisman factories nearby.

However, the factories here are mediocre, and there are no Talisman Masters left who can manufacture the rank-3 Azure Sky Talisman Paper and Flying Rainbow Ink Talisman.

Even in the past, only the cultivators from the Yan family were skilled enough to do so.