As expected, the Divine Monarch of Tragedy’s next words confirmed Su Yi’s guess.

“The Den of Caterpillars is like a prison. It’s full of endless bloody, baleful energy, and it can strip and devour a cultivator’s blood, qi, cultivation base, and life force.

“Although Imperial Realm cultivators such as myself can fight the bloody, baleful energy off, over countless years, the Den of Caterpillars can still relentlessly devour our life force and cultivation base…”

The Divine Monarch of Tragedy’s voice was suddenly low and bitter. “It feels like becoming a crop in someone’s farm, forced to offer your life force and cultivation to another. In the end, those trapped will inevitably perish, and their Dao will disappear forever.”

Su Yi furrowed his brow. “The jailers see Imperial Realm experts as caterpillars, strip them of their life force, and devour their cultivation… But what is all of that for?”

After a moment’s silence, the Divine Monarch of Tragedy said, “Refining medicine! They’re using us as medicine, turning our cultivation base and life force into medicine for their own use!”

Su Yi’s eyes narrowed. “How’d you figure that out?”

“Once every thousand...