Yu Fuge transmigrates into a book and becomes the cannon-fodder cousin in the Xie household who doesn't survive past chapter three.
To stay alive, she swiftly drafts her Guide to Staying Safe as a Couch Potato and clings to the powerful cousin, Pei Wuwang.
She has only spent a few days throwing her weight around in the Xie household when the wicked emperor forcibly takes her as a Noble Consort and sends her into the palace.
On her first day in the palace, Yu Fuge sees the empress, Sheng Tinglan, seated on the phoenix throne. They exchange their secret code through tearful eyes: "If the variable changes, does the parity change?" "The symbol depends on the quadrant!"
They've found each other as best friends, but before they can celebrate, they discover that the wicked emperor, remaining chaste for his first love, has been sending his twin shadow guards to sleep with the imperial consorts in his place!
Looking at the shadow guard before them, with broad shoulders, a narrow waist, and tempting abs...
Sheng Tinglan raised an eyebrow. "Are you still carrying out your assignment tonight, Su Jiu?"
Yu Fuge slapped the table. "Talk back to me again, and I'll have Pei Wuwang take your worthless life, Yan Chi!"
The wicked emperor is still dreaming of profiting while his consorts fight among themselves.
Little does he know that the two best friends are happily turning the harem into their home while munching on sunflower seeds, and they've even completely turned his most trusted shadow guards against him!
Later, the wicked emperor stares at his empty treasury and the shadow guard sitting on the dragon throne, utterly dumbfounded.