Harry Potter: A Certain Ancient Rune Professor of Hogwarts (TL) - Chapter 30

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

Zhong Yuhuan had transmigrated into a book and became the female supporting character who was destined to die an untimely and tragic death. Coincidentally, her family adopted two boys — the male lead and the villain of the book!

The male lead of the book would become a superstar in the show business and the villain a super successful and powerful businessman.

Zhong Yuhuan thus began her life of raising the male lead and the villain while faceslapping other scums. She would grow up quickly and live the life of the rich and powerful Mary Sue!

- Description from Novelupdates

Zhang Siyi, a graduate student of architecture department went back from overseas seeking for work, he had a heated fight with his ex-girlfriend in a cafe. Angered, his ex-girlfriend was about to splash a cup of coffee in his direction but he managed to dodge it. As he stepped back, the misfortune was met by the handsome guy next table instead.

The following next day, as Zhang Siyi headed for a company interview, he discovered that the interviewer was the same man who suffered the splashing of coffee.

Hopeless, Zhang Siyi thought this work was unalterably unattainable, but that handsome man unexpectedly “disregarded past grudges” and decided to hire him. Even more, the man had become his immediate superior.

To accept Zhang Siyi by the said man, he was moved to tears with such magnanimity and kind-heartedness. Never had he realized it yet that his “miserable” fortune has just begun…

- Description from Novelupdates

A heroine character transmigrates and gets busy expanding her golden halo of MC-ness.

A villainess character transmigrates and gets busy changing her cannon-fodder fate.

A side character transmigrates and gets busy stuffing her bottomless stomach. She holds a divine sword in one hand and a little bun in the other. She’s obedient, adorable, incredibly clueless, and frustratingly tightfisted with her words. So what does she do when she spies a cute blonde?

Feng Wu: “Please marry me!”

Ming Xi: …

A hilarious story about an overpowered airhead in a world reminiscent of Coiling Dragon. This particular tale has an interesting mash of tropes.

- Description from Novelupdates