MTL - Beauty and the Bodyguard - Chapter 13 Cave adventure (below)

Murong Jiu, the Ninth Young Miss of the Marquis Mansion, was ugly and talentless, and her fate was to harm her relatives. She was raised in the countryside from a young age. Due to her exceptional medical skills, she was used by the Crown Prince, who drained her of all her value and then threw her into a deep well to drown.Only before her death did she realize she had been switched at birth. Others were rightfully enjoying everything that should have been hers; later, all her family died for her, becoming stepping stones for the Crown Prince!Reincarnated, she returned like a vengeful ghost from hell, making her enemies tremble with fear, ready to seek revenge for each grievance.Unexpectedly, she unintentionally became the darling of her biological family, which made her retract her sharp edges.As the substitute Princess Consort of Prince Ling, she and Prince Ling were a fake couple, intent only on finding the real father of the child in her womb, yet unaware that the man from that night was right in front of her…

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy

The little handsome son-in-law passed through a world as waste material and the husband of a wealthy family. But because of his lacking aptitude, the wealthy family had driven him out. So he worked hard and found a more powerful family’s thighs to hold onto. Soon enough, he became the strongest son-in-law and husband in history.

In this world, it was impossible to practice martial arts. It was futile so he might as well take advantage of his wife’s thighs and maintain a comfortable and leisure lifestyle.

He’ll train his wife to become the strongest and best person in the world.

“Whoever dares to provoke me, let my wife kill you!”

- Description from Novelupdates

[Warning: Mature Content]Shuri Lee never imagined her quiet, unassuming life would lead her to Noran Kingston, a world-renowned pianist admired for his brilliance. Despite her humble background and the Kingston family’s disdain, their love was pure and unstoppable. Against all odds, they eloped, creating a life of quiet joy—until tragedy struck.Shuri’s life was cruelly taken, leaving Noran broken and consumed by vengeance. In his grief, he destroyed those responsible before ending his own life, desperate to reunite with her.But fate granted him a second chance.Awakening years earlier at the peak of his fame, Noran vows to rewrite their story. This time, he will protect Shuri at any cost. “I’ll never let you go, Rin. Not again.”No longer just a pianist, Noran builds a global empire to shield her from harm. But as he reshapes their future, he discovers that Shuri carries secrets—hidden truths that could still tear them apart.