Overpowered Gosu

Overpowered Gosu summary:

Lin feng, he lost his mother when he was born. When he was 16, his dad died due to cancer. After being alone for two years, he was devoid of any emotions. He attended school, after getting back, he simply read novel and manga. only happiness he could afford.
 
On a common looking day, he was out for shopping. Who knew it would be his last day? he was headshot by the robber. When the robber pointed the shotgun toward the cashier, the cashier tried to be a hero. The result of their fight was the 3 Cm hole in Lin 's head.
Truly Unlucky.
But he wasn 't all that unlucky. Got a chance to be born again as a Dragon in another world. Somehow got back to the human form to rule the world. Not a normal one, he was "Draman".  The only difference between his previous self and the current one was Power. For some reason, Lin looked down upon humanity.
Lin feng will show you what a true merciless Mc looks like.