DxD: Building A Demon Clan From Scratch. - Chapter 4: Go get ‘em, Utaha!

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

Reborn as a human, Xu Qing uses a bronze mirror to navigate the ups and downs of the mortal world, avoiding danger and seeking the path of immortality!

It was an era of war unlike ever seen before in Murim history.To end the horrible war, numerous heroes had sacrificed their lives and disappeared on the battlefield.This is the story of a man that longed to be a hero and the story of his brilliant rise to the top.***Joo Seo-Cheon is a man who luckily survives the Warring Era and becomes the Hwasan sect’s elder, only to live a life full of regrets and doubts.He lays on his deathbed waiting for the inevitable when he is returned to the past…

An obscure restaurant in an ordinary street? The cursed thing sealed in the steel city? Reverse the mysterious time-space history of confusion? …

From the moment he was able to see the “ID” and “Blood Bar”, Gu Mo thought that his way of opening was wrong. He was determined to return to the world of normal people and not be dragged down by his own imagination and hallucinations.

However, the painting style of the everyday world is still breaking down day by day, and the broken daily life is becoming more and more magnificent day by day, and he found that something was a little wrong.

- Description from novelbuddy