After transmigrating into a book, Gu Qingqing discovers that she has unfortunately become a minor cannon-fodder character who barely gets a mention. As if being cannon fodder weren't bad enough, she has suffered from a strange illness since childhood, enduring years of pain. At long last, she obtains a pill that is the only one of its kind in the world, but through a twist of fate, the gloomy and ruthless Prince Regent Su Mohan swallows it.
To stay alive, Gu Qingqing has no choice but to play the part of someone hopelessly in love with Su Mohan. She tries every way she can to spend a night with him, and ends up becoming his personal maid.
Gu Qingqing: This servant adores Your Highness and is willing to be your concubine.
Su Mohan: Get out.
Gu Qingqing: I could be your bedchamber maid, too.
Su Mohan: Get out.
Then one day, Su Mohan's sworn enemy personally comes to ask for Gu Qingqing's hand in marriage. That very night, Su Mohan, who once swore before the late emperor's tomb that he would never take a wife or concubine, goes mad.
He unfastens his belt in front of her and lifts her chin with a fierce grip.