Reincarnation - The Divine Doctor and Stay-at-home Dad - Chapter 18

This novel is also known as Master Fu's Mysterious Darling Wife

She is the The Young Miss of Military family Shen, her face is peerless, her temperament is cold, and she is her family’s treasure, but isn’t accepted as one’s child by her mother;

He is The Sole Heir to the top giant Fu Family, his power is unparalleled, indifferent high-born, the captain of the mysterious military force, and the youngest commander-in-chief.

Because of her grandmother’s wishes, she married him at lightning speed. She thought that it was a marriage that she needed, but she didn’t expect to be greeted with his extreme pampering.

- Description from Novelupdates

Mo Ran felt that taking Chu Wanning as his master was a mistake.

Wendy Waltz, a diehard anti romantic! Though born as royalty, she had been neglected by her father and bullied by her stepmother and younger sibling. To make this worse, she had been betrayed by her lover. She throws away her royalty and name and starts anew with a new name and a strange power! But who is this Head of the Imperial Guards, Lard Shroder, who keeps appearing beside her?

After coming out of a tunnel… it was pitch dark.