I Am Supreme - Chapter 33: A Fate-Sealing Dossier!

Transmigrating into a world of cultivation, you find yourself at the lowest rung of the sect's hierarchy. Everyone wants to bully you to gain some benefits. Fortunately, there are always a few junior brothers and sisters who are 'generous and understanding', allowing you to improve peacefully and secretly grow stronger. Years later, unbeknownst to anyone, you successfully become a deity within the sect. This day, your master visits you at the sect's request.'The upper echelons of the sect believe you have been diligent and loyal over the years, and though your strength is mediocre, you are an honest person, so they've found a marriage alliance for you.''An alliance marriage?''Not exactly. The other family has a rule: marrying into their family means taking their surname.'Is this... becoming a son-in-law who marries into the wife's family?

He was the continent’s strongest and most revered alchemist, Ye Zifeng. He was under one person and above millions. However, due to an unpredictable event, he had died. After his rebirth, he had become the supertrash of the Ye family and suffered disgrace. To make matters worse, he had an argument with his fiancé that led to the break off of his engagement. In this second life, he will work to change his own destiny. He vows to return to the peak of the world, trample on those who laughed at him and rewrite his legacy!

- Description from Novelupdates

A literal ‘red flag’ in a world that sees her as a threat.Excerpt:“You shouldn’t be here,” Zenon growled, his voice low, eyes dark with conflict as he leaned away.Elira looked up at him, lips parted and swollen. “Then why did you kiss me?”“I couldn’t resist you.” His arms tightened around her waist instead of letting go.“Then don’t,” she said, without breaking the gaze.“Remember, you asked for it.” Zenon’s eyes darkened with desire as his lips found the perfect spot on her neck.---Elira Shaw was never meant to shine.Born an omega to a once-respected Beta bloodline, she’s lived as a ghost in her uncle's home, the acting Beta of the Ashfang Pack.After her parents' mysterious deaths when she was thirteen, Elira became little more than a servant to her aunt and cousin, Regina, the flawless Luna-to-be, groomed to marry one of the Alpha's sons.With no rank, no power, and no name worth remembering, Elira has long accepted her fate.But her fate transforms on her 18th birthday — the night of the grand mating ceremony.Not one, but the wolves of all three of Alpha Cyprus Ashford’s sons recognize her as their mate.The pack erupts into chaos. Regina's engagement plans crumble in fury. And Elira, the despised orphan, is suddenly the most important wolf alive.

Transmigrated into a trash body of general's daughter as female lead? Peh! Too mainstream! Transmigrated to be a villainess? Common! What about transmigrating and ending up as cannon fodder? Have read it before!