MTL - The Full-level Boss is In the Female Respect - Chapter 10 useful widow

Reina Suzuki was an overworked office worker—until she died and woke up as Lavinia Devereux, the infamous villainess princess of the Elarion Empire.She knows how this story ends: she’ll drink poison and die. A painless, easy death. So why bother changing fate? Villainy, revenge, redemption—sounds like way too much work. She decides to do absolutely nothing and let the story play out.But her terrifying father, Emperor Cassius Devereux, won’t ignore her like he’s supposed to. He watches her, questions her, and—worst of all—starts acting like he actually cares.Lavinia just wanted a quiet villainess retirement… so why does everything keep changing?

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian

Shao Xuan joins a friend in his expedition to a recently discovered archaeological cave. After he picks up an ordinary looking stone he is teleported to a different world and wakes up in the body of a small orphan child. The world he is in now is still in its stone age with primitive tools made of stone and the ways of the people are savage. Savage isn’t the only thing special about the people though, because they have superhuman strength, jump higher than trees and punch stones. In short, they are able to cultivate their bodies. Despite all this, it is a real struggle to survive because of the scarcity of food. Together with Caesar, his pet wolf, he tries to survive in this cruel world.

Riku Barusak is a hard-working child. Despite possessing an innate superior physical strength and having withstood harsh training she fails to unlock her talent as a spiritualist. The failure results in her being thrown away by her family.