Spit Out When Bitter, Swallow When Sweet

Elia, a princess indulged in the wealth and love provided by the Empire, lives a blissful life. However, her happiness is brutally shattered when she is betrayed and offered as a sacrifice for the Empire.
After returning, Elia realizes that this world is actually the setting of a book. Determined to change her fate, she enters into a contract marriage with a villain.
“We just need to get what we want from each other.”
The villain, who has not yet embraced his darker nature, initially appears gentle. But then things take a turn:
“Elia, isn’t marriage supposed to be sacred?”
Aksion blocks her path. She tries to escape, and this attempt alone turns the villain’s gaze dangerous.
“Please fulfill your duty.”
The focus of the villain’s unwavering devotion has shifted.