Great Master, Calm Thyself

When an unknown book from another world mysteriously appeared in the Immortal Realm and landed itself on the hands of the most powerful cultivator, what would happen?

...Well, almost nothing, except all she wanted was the unknown book's sequel. But who might've taught that the sequel is on the Demon God's hand?

To grab the book on the Demon God's hand, she used a forbidden and unknown skill. The next thing they knew, they're in another world!

Yun Xie: "Foolish mortals, bow before me!”

A certain Demon God: "Damned Brat! If not for you copying the main character's skill incorrectly, this wouldn't happen... Arf! FML!"

A certain sealed dude that got caught in their fight: "*dies*"