In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 13:

My daughters started regressing out of nowhere, stirring up a storm because they missed their mother.…But I haven’t even married yet, let alone have any daughters!?

Nessa was transported into a new and completely unfamiliar world where monsters roamed free and survival of the fittest was the supreme rule for the majority of them. In this world, which was beautiful yet dark and cruel, she was given an opportunity.An opportunity to build her own nation after becoming the leader of a few peculiar monsters.Will she be able to overcome those who oppose her, threaten what she is creating, and demonstrate her power to the world in order to achieve peace and acceptance, or will her efforts in this world be futile?[System notifies]Come join Nessa and a few kind souls on their journey to create a nation where monsters, humans, and other creatures can coexist and live happily.

“Take me in, I’ll do anything you want me to!”

In her previous life, Lu Man is sent to prison after being framed by her step-sister and an asshole. After being released from prison, the only thing that greets her is her mother’s tombstone. Seeing the as*hole and bit*h getting happily along together like one big family with her birth father and step-mother, she sets out to die together with the as*hole and her step-sister in fiery flames.

The moment she opens her eyes again, she finds herself back on the very day she was framed. Resolutely jumping out the window and climbing next door, she seeks refuge from the man occupying the room there. But who would have guessed that the man is the brilliant hunk she has always admired from afar in her past life?

She vows to rub her eyes clean and be more discerning of people. She wants to make everyone who owed her in the past to pay her back!

“Young Master Han, can you let me hug your other arm too?”
“Actually, I have one more, do you want it?”
“…”

- Description from Novelupdates

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.