The Empress Started Lying Flat After Swapping Bodies with Me

My name is Gu Ning, the eldest legitimate heir of the only prince with a different surname in the Great Feng Dynasty.

I have a lie-flat sign-in System. I can earn all kinds of rewards every day without lifting a finger, and now I'm on the verge of becoming an Earthly Immortal.

But when I woke up one day, I discovered that I had become the emperor of Great Feng. And the emperor was a woman?!

Luckily, the System came along too... Wait, doesn't that mean I'm signing in for her?

My name is Zhao Ji. I am the emperor of Great Feng, but now I've become the number one playboy under heaven.

Hold on, how does he have such incredible cultivation? And what in the world are the 300,000 Snow Dragon Riders?

And why do I seem to grow stronger whenever we switch back after seven days?

I wanted to be a wise ruler who curbed the power of the feudal lords and expanded our territory, but Gu Ning is just too terrifying!

Forget it. He can do whatever he wants...

This novel and its characters are entirely fictional. Any resemblance to actual persons or events is purely coincidental. Do not imitate.