I Leveled up from Being a Parasite, But I May Have Grown Too Much - Chapter 84 - Contender Eiji

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

Transmigrating to a lawless person and then directly upgrading to a little brat’s stepmother. Xiao Ting said, “Crap, there’s no need to even give birth to a child. God, I love you so much …”

- Description from Novelupdates

Zephany Draven is a shy, clumsy celebrity journalist who is constantly ridiculed for not getting the big scoops. She is soft-spoken and easily intimidated, so she looks weak. However, behind closed doors, she's Eclipse, an altogether tougher, loud-mouthed agent and quite ruthless and efficient.Kendrick Montclair is a gentle, positive artist who loves his family and remains optimistic despite his struggles. His gentle nature makes him easy to take advantage of. But secretly, he's Obscura, a cold, ruthless agent who is efficient and silent.Both work as partners in a secret organization that preserves hidden truths erased by governments, yet they remain completely unaware of each other's true identities.Their goal is to reach the highest level of clearance to access classified information. But just when they're on the verge of success, they fail.Then, a mysterious man appears with an offer—a contract marriage in exchange for the information they desperately seek. Trapped with no alternative, they sign the deal.But neither expected what would happen next.-------------Kendrick and Zephany sat by the glass wall, waiting for their food when a car suddenly crashed through. Kendrick pulled Zephany to safety just in time, but both got small cuts from the broken glass.“Are you okay?” they asked, checking each other.To their astonishment, the cuts healed before their eyes.Their minds raced. “Beside me, the only person I know who has that ability is.”“No! She can't be that loud, short-tempered woman!”“No! He can't be that silent, obnoxious man!”“Did I marry my secret partner in crime?” They both shuddered at the thought.

After rebirth, she, who used to be a top international spy, becomes the eldest daughter of the Fengs, a fat girl who is ugly and foolish in the eyes of the ordinary people.
Mastering Royal 18 Saber Moves and Purgatory 9 Palms, she rose to fame with the martial arts of Demon Cook.
Upon an imperial edict, she was ennobled as the wife of Lord Cen, and then suffered various intrigues and plots…
She proved herself to be a real overmatch and a true genius to the world…