Law of the Jungle (Book 7): A Wuxia Progression Fantasy Adventure Series

Seekers occasionally find themselves in situations when a single world no longer suffices. Even as matters remain unfinished in the First Tier of the human realm, the demon world beckons them with all the adventure and peril it has to offer.

And one doesn't just go to the demon world for a leisurely stroll. If you need a reason to go, it has to be one like joining the elite school of the Second Circle. And if there are enemies to be made, they should be the kind that make shivers run down your spine.