Steel, Guns, and the Industrial Party in Another World - Chapter 328:

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

This story is set during the end of the Sui Dynasty, a time where multiple powers struggled for supremacy and power.

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.

Initially, Lin Mo intended to become stronger through cultivating diligently. However, he discovered that staying idle was more comfortable. Most importantly, he could level up by doing nothing! Since he could achieve his goals by lying idle, why would he trouble himself to stand and work?

Lin Mo transmigrated to a martial arts world and realized that he had no talent in cultivating at all. Fortunately, he awakened the Idle Upgrade System. He could become stronger by staying away from the rat race and enjoying life.

Lin Mo lamented, “It’s not that I don’t want to work hard, but truly, there is no opportunity for me to do so.” As such, the most bizarre Martial Arts Saint in human history was born.