Reincarnation from Zero R.f.Z.

Tyrant, heartless and cold? That's how people describe the greatest villain in history, the Demon King, who once dominated the empire... And what's worse? He was reincarnated as him!
~~~
However, who cares! He's going to live his life freely, devoid of any troubles...

"The town's people needs your help!"
"..."
"Please take me as your apprentice, master!"
"Eh?"
"The Empress ask you to live in the Palace."
"What?!"
"The Demon Lord wants to eradicate your existence."
"F*ck,again!"
~~~
...forget it..