MTL - The 21st Century of the Gangsters Everywhere - ~ Six hundred and twelve classic engravings

A man was transported to Ancient China and eventually became a servant of a declining household without a male heir. He utilized his wits and modern knowledge to help the household and eventually become trapped in the sea of political turmoils of the period.

- Description from Novelupdates

Kyle woke up in a land of fantasy and magitech. The usual 'I died and woke up' bullshit, skip all that.

Except he used to be a crime lord, and society here is missing that extra kick.

When her father passed away, her mother married into a large family. She thought it'll be a new beginning of her life, but it only brought her an substitute marriage to a disabled husband her step-sister didn't want.On the second day of their marriage, the noble and aloof man said indifferently, “Divorce or live as a widow, choose one.”She pulled off his suit pants and touched his firm and sexy thigh, “I choose the third option!”Latter, she used her medical skills to healing and saving people, including her disabled husband, who turned out to be a hidden billionaire!Nobles and celebrities sought medical advice, flocking to her like ducks.Those who humiliated her regretted it deeply, begging for mercy on their knees.The billionaire smiled proudly, “My wife is a treasure, only her husband knows it!”She rubbed her waist and gritted her teeth, “Didn't you say that you wanted a divorce and warned me to stay away from you?”

He is the ruler of the mercenary realm, an overlord that gives headaches to the leaders of any country! For the sake of his friends, he’s willing to sacrifice himself; for the sake of his family, he does not hesitate to spill blood! He is a dragon, one that soars above even the highest of heavens. He’s a power that advances triumphantly through unstable situations, stirring up both the winds and the waters.

- Description from Novelupdates