I Work As A Healer In Another World's Labyrinth City (LN) - Side Story — The First Errand

Xue Xi is forced to fall in love at first sight with this dangerous man on their first meeting. With death being the only other option, she makes the first move:

She is the twenty-fourth century’s strongest immortal cultivator, but transferred into a world of magic where demons roamed rampant; a punching bag tyrannized and ostracized by her clan on one side while the scum of a man that is her fiancé humiliated, trampled her on the other side…

During a party one evening in the royal palace, Rachel, the eldest daughter of Duke Ferguson, was reproached by Prince Elliot for sins she didn’t remember committing and their engagement was abandoned. Rachel informed everyone she had not committed the acts they were accusing her of, but she was dragged away out of the party venue and thrown into the palace dungeon.

A relaxing story of a business tycoon who, sick of machinations and struggle, returned to the medieval world and married into a merchant family to become a “zhui xu,” a husband that lives in the wife’s home. Even though his intentions were not so, he could not avoid the matters of family, country and world.

“There was once a person that stood at the top of the golden pyramid,

with the innumerable cheap jealousy and envy of people,

he walked this road escorted by tens of thousands of people,

yet he could not escape the long and lonely sleep under the gravestone. ”

- Description from Novelupdates