Feng Chen, a prodigious young genius from the Hidden Realm, the greatest swordsman of his generation and the maker of countless legends.
To escape the pursuit of half the Hidden Realm, he flees to a lower plane.
And unexpectedly, he ends up with an utterly adorable little sister?
But then come Heaven's punishment, the collapse of planes, and even visitors from other worlds...
A whole chain of consequences follows!
"She's my only little sister. I don't care what kind of bizarre superpowers, technology, mutants, or machines you've got. I don't understand them, and I don't want to. All I know is, if my sister suffers even the slightest wrong, then your world has no reason to exist anymore."
