Primordial Ancient Serpent - Chapter 31 - : Mark of Chaos

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates

Yun Bixue is in dire straits—

A former sporting rifle shooter genius transforms into the ‘Juvenile Butcher’. While originally supposed to have received the death penalty, he was instead fortunate enough to have entered a secret and highly regarded armed force, throwing himself into the ‘Nirvana Project’.

Ted was reborn in London in 1991, and he had dreamed of becoming a millionaire, but a letter came from Hogwarts!

I thought that relying on the card system and monthly knowledge of other worlds, I would not be the second greatest white wizard of this century.

In the end, you told me that there have been two confluences of stars in this world, and now it is full of magical animals and plants from other worlds, as well as intelligent races!

What’s even more outrageous is that the savior has changed into Neville! Harry became Harley!

Nanadi, play Yindi with me, right?

Then no one wants to live~

System Upgrade!

- Description from novelbuddy