Tangled By Fate - Chapter 399

After the continent of the nine clouds, the continent of the gods, Lin Feng, a proud cultivator, journeys to exciting new worlds. There is more trouble on the horizon, will he be strong enough? See his journey…

- Description from Novelupdates

This world has fused with another world and such fusion leads to the rise of Martial Artists.Chen Shouyi becomes the master of the ‘Book of Knowledge’. He can deduce cultivation arts, and optimize secret manuals with the help of it.But the first time he enters the space created by this Book, there's an accident.“Brother! Brother! What happened to you?”“Wake up, I promise I'll never intentionally annoy you again.”“Please wake up!”“Brother! Brother... Dad! Mom! Come quickly, my brother has fainted.”

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

Seven years ago, after their breakup, he disappeared without a trace.