Li Qing understood that the Demon Spirit Elixir was not without its different levels; others did have them.
It's just that the high-tier ones were too lofty, and their refinement was too difficult.
Most people would rather choose to directly refine a high-tier Demon Beast Inner Core than risk destroying the Inner Core during the process of making a Demon Spirit Elixir.
Therefore, even though such items existed, they might as well have been considered nonexistent, being exceedingly rare.
Even in that previous era of prosperous cultivation, high-tier Demon Spirit Elixirs were such rare treasures that it would be reasonable to say there were no high-tier ones now.
"Husband, may I take a look at your strength?" Jing Yan asked softly.
Li Qing nodded, "There's no issue with that, but how would you like to see it?"
