Tomodachi no Imouto ga Ore ni Dake Uzai - Volume 1, Afterword

Yin Yin is the new bedside mother-in-law who specializes in protecting the safe and healthy growth of children in the world. However, she found that more and more parents do not pay attention to their children’s growth, which leads to the original innocence and cuteness A child’s life is miserable.

Yin Yin decided to go down to earth to become the mother of the children and protect the happy lives of those poor children.

World (updated in no order):

1: A patriarchal mother

2: The queen mother who gave birth to a child in hidden marriage

3: Mothers of left-behind children

4: Single mothers of divorced children

5: The mother of a child with autism

6: The mother of a disabled child

7: “For You” Strong Mom

8: The eccentric mother who abused her adopted child

9: The real and fake daughter of a peasant mother

10: Second child mother

11: The Queen Mother of the Nine Sons

12: The gold-worshiping mother who holds the upper hand

13: Superstitious illiterate mother

14: Stepmother whose mother became a stepmother

15: The poor mother who abandoned her husband and child

16: The Fallen Wealthy Mother

17: Abducted college mother

18: Divorced mother of blind child

19: The loving mother who lacks love for the little father-in-law

20: To be added

- Description from novelbuddy

She gnashed her teeth as she faced the abuse from the Imperial concubines in the Imperial harem, forced to endure many calamities.

After travelling through time, Su Yan thought that that ** little bi*ch was right: good people don’t live long and misfortune lasts for a thousand years.

But no matter whichever era she was in, she would tightly grasp the thickest golden thigh and never let go. Looking at it now, it seems that her husband had the thickest thigh.

Till now only modern people were transmigrating back but what happens when an Imperial Concubine transmigrates into modern time? What happens when modern and ancient values clash? Hilarity, action and seduction ensues.

- Description from Novelupdates

Qiao Zhenzhen spent a lifetime, only to later realise that she was the true heroine of a novel. According to the original plot, her life was supposed to be smooth sailing and blissful. But the envious transmigrated second female lead played her cards step by step, and took everything away from her!

After experiencing the divorce of her parents, and miserably failing the college entrance examination, she gets kidnapped along with her little follower of a male lead, Chi Shen. In the end, she came out as the only survivor.

Everyone believed that this was a blessing in disguise, not only was her life saved, but the pervert stalking her for the last three years was also gone! A freak like Chi Shen, who had a weird and eccentric personality, always stank of fish and grease, was better off dead. Everyone said that she ought to be grateful, but none of them knew he died protecting her.
Before he took his last breath, his dying words were-

“Don’t be afraid of me.”

That sentence, mixed with the smell of greasy fish and blood, flashed in her dreams every night for the next decade.

Reborn back into the senior year of her highschool, she walked to the youth in the corner, and in front of everyone’s eyes-

“Don’t hideaway in the dark if you don’t want me to be afraid of you.” The youth pursed his lips, his pale face steadily losing color.

Qiao Zhenzhen smiled: Be nice to me, and I shall allow you to stalk~

- Description from Novelupdates

The fat and ugly Nora Smith is the laughingstock of the town when her fiancé breaks off their engagement.