Yan Jiu and Mo Xiao traveled through time
The reason was that the two souls were out of body.
The space manager let them travel through time
So they entered the world of Douluo Continent
"How did we travel across time?"
"I don't know, that space manager is so boring."
"Indeed."
"Then enjoy it, it doesn't cost any money anyway."
Some settings will be used from comics, but the general settings are still based on novels.