MTL - Feng Mang - Chapter 262 exception.

Li Yanchu transmigrated into a strange world of martial arts, Daoist spells, ghosts, and monsters, only to land in the body of a young Daoist at the rundown Qingyun Temple. Just across the street? A rowdy inn run by a stunningly seductive innkeeper. Life could be worse.Gifted with the mysterious Decree of Bestowal, Li Yanchu can transform ordinary herbs into century-old divine medicine, giving him an unparalleled advantage in cultivation. With this cheat-like ability, he advances rapidly in cultivation, despite being told he had no talent for it.But cultivation isn’t his only path forward.After slaying a ghost and earning merit points, he realizes there’s more to this world than martial arts. Hidden behind the scenes is a karma-based system, one that rewards righteous deeds.As his saber technique grows sharper by the day, Li Yanchu finds himself entangled in eerie mysteries, deadly encounters, and strange happenings in Wei City…Now, with the authorities pounding on his doors, Li Yanchu’s peaceful days of tea and training might just be over.Ghosts. Bandits. Cultivation. A cheat system tied to karma. When the mortal world and the supernatural collide, only one Daoist stands between chaos and order.

No one knows when the first Clough door appeared. All people know is that a new era began when it was pushed open.Fortresses, sublimators, pillars of star essence, three-dimensional armaments, infinite energy, who can escape the sweeping tide of the times?In the abyss, the reverse realm, the skins, the alien gods, the mad king, the rulers, and the dark creatures, all howl in madness!Inside the black mist, the demons and ghosts crawl forward as a cross-dimensional migration silently brews.

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

In the 21st century, she was the talented leader of the hidden family clan, once she crossed over, she became the number one waste?