After transmigrating into a book, Chen Liang became the groveling heir who helped the female emperor ascend the throne.
According to the original plot, the female emperor would do everything she could to kick him aside, leaving him as just another nobody on the street. Then she would get together with the man she had always loved.
All Chen Liang had to do was play the villain, get himself killed, and return to his original world.
But...
When Chen Liang surrounded the imperial palace with his troops and went to court armed with a sword, he expected to enrage the female emperor. Instead, she not only welcomed him, but invited him to sit with her on the dragon throne and help govern the realm.
Was this really how things were supposed to go?!
The female emperor had a personal guard, Qing Luan, with whom she was so close they could tell each other anything. Chen Liang asked for permission to marry her, expecting the emperor to fly into a rage and cut him down with a single stroke. Instead, she readily agreed.
But when Chen Liang lifted the red bridal veil, the person underneath was the female emperor!
“Wait, where's Qing Luan?!”
“And what happened to the coldhearted female emperor? Why has she turned into a yandere?!”