MTL - Lord of Mysteries 2: Circle of Inevitability - Chapter 68 Purification (ask for a monthly ticket)

Wei Yuewu is the unloved daughter of the powerful Marquis Hua Yang. On her way back to the capital city to marry her fiancé, she becomes the target of a ruthless assassination led by her fiancé, Marquis Jing Yuan. With the help of the Prince of Yan State, she narrowly escapes from one disaster after another and returns to the capital. Determined to avenge her enemies and unravel the mystery surrounding her engagement with Marquis Jing Yuan as well as the death of her mother, Wei Yuewu makes a deal with the Prince of Yan State. However, just as she has triumphed over all her enemies and is about to reach the acme of her life, she deliberately destroys her own future and becomes an exile of her own…

- Description from Novelupdates

It was only after Su Yayan's death that she realized that she was a malicious cannon fodder female character who became a scapegoat in a Mary Sue story.

Lin Fu's biggest regret was being born into a military police family, yet due to physical limitations, she could only sing and dance in the cultural troupe, serving as a qualified vase.Accidentally traversing to the interstellar era three thousand years later, she was thrilled to discover she possessed a rare S-level psychic power, inherently cut out to be a fleet commander.She would attend the military academy, join the Marine College, command a cosmic fleet, and become a gallant female general.**However, her new identity was just the daughter of a remote star system's farm owner. To achieve her dream, she aimed to marry into the family of the empire's youngest space fleet commander.Commander His Excellency was cold and abstinent, with an imposing presence, yet devastatingly handsome enough to break hearts. Lin Fu fell for him at first sight.She wanted to have him, and even more, she wanted to stash him away secretly.**Later on, the whole interstellar space finally learned that the always ridiculed incompetent bumpkin was actually the commander of the Empire's Third Fleet.She was also the former most noble and adorable Princess Freya of the royal family, as well as the fearsome star thief that made people tremble.The entire interstellar was boiling with excitement.The handsome and noble commander His Excellency was not happy: What happened to the promise of stashing me away privately?