This confirmed there used to be a great war with the invasion to another world, and maybe the duo Cthulhu Sister (not them but the Evil God/Goddess) was injured because of this war and had to escape to another lower realm.

She's the Yan Ruyu of this world, she'd def betray MC like this on that Kingdom ruin they're planning to go if she ever gets the chance.

This is so satisfying, reminds me of that time when the MC of Xian Ni vowed to get revenge against an entire Tang Clan and no one was spared with him putting restriction all around their Clan. He even used their heads as his cape to strike fears too.

Yes! Praise it more! The classic cultivation level is really amazing because it's THAT good.

Wait I take back what I said in the previous chapter, if the second pre-celestial level is already at the transmutation stage then the celestial stage must be on the level of Yin/Yang Corporeal or even Heaven/Nirvana Scryer and no longer Ascendant which is crazy. The cultivation system on his main world is so strong to be comparable to that.

Finally a "real Cultivation System" and world! Oh this brings me back to the first ever Xianxia (novel not the Manhua cuz they made the MC personality really bad and different in the manhua) I read, Renegade Immortal with this system. Foundation Establishment, Core Formation, Nascent Soul, Soul Formation, Soul Transformation and finally Ascendant. Also I reckon in Xie Yan main world the "Celestial" stage covers Soul Transformation and Ascendant Stage. And the plot in this world kinda reminds me of the prequel, also the best work from the author of RI, Pursuit of Truth with this similar setting in the world where the main bad guy culled everyone cultivation and sealed that whole realm.