The Reborn Urban Immortal Emperor

*Bring a thousand years of memory back to the city.  
He swore to bring his true love with him, to cut down strong enemies, to look down on all living things and back to that world to take every thing back! 
... 
Who is he? 
As the talented modern man, after so many years since he had cross into this isekai world, he had became the youngest and also the most ruthless cultivator in the history of the realm. 
When about to break through to the monarch realm, he was attacked by the nine Celestial Emperors. 
Why? 
Because the others were afraid of him becoming a monarch. They were afraid that after he became a monarch, no one would be able to suppress him anymore! 
Therefore, the nine great Celestial Emperors of the Great Sky World led billions of experts to surround him. 
This battle lasted for seven days and seven nights.
Eventually, hundreds of millions of cultivators died in his hand. He knows he could Kill them all, but  in the end, he discovered that there was an inexplicable poison spreading to every cell in his body, so that after he was injured, he could not recover at all. 
Just as he was about to be killed, Ye Luo chose to detonate his dantian and perish together with one of the Heavenly Rulers.
... 
And now who would have thought that he would actually be reborn?
He had been reborn a thousand years ago, when he was still a student!