MTL - Start with Batman - v2 Chapter 401 i will shoot

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

A high school student that has lived as a mob-character ―― Mimori Touka

When he stayed at her home and one night, he took her body in a drunken stupor. From then on, he had been a constant fixture in her life. How adamant he was in forcing a marriage was how adamant she demanded for a divorce. “I’m not staying married to you! I’m not staying married to you! I’m not staying married to you!” After she repeated such an important proclamation three times, he finally tossed her the divorce paper. She thought she had finally escaped him alas… After the divorce, he still snuck into her room every night… Finally losing her patience, she yelled, “We are already divorced!” He glanced at her and set down the divorce paper before her. On it, it was written clearly: After the divorce, the car is hers, the house is hers, the company is hers, their child is hers, he… is also hers?

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates