Doomsday Devil Incarnate

*The Apocalypse has already come many years ago. 
Hundreds of different monster races has rised and began to take over this world.
Facing such crisis, A few humans had gradually awakened their bloodlines and learned a shocking secret. 
There was once a war between the demon and gods on Earth countless years ago.
And the humans were descendants of the demon and gods. 
Thanks to that, the human had survived.
However, It had also made the human Split into two Race...
As the lowest gangster he was luck enough to awaken his demon bloodline.
He thought with this power he could give his girl a better life.
But might be God's tease, his girlfriend awakened the god race bloodline. 
Even though the two of them are truly loved each other, but they still had to bear the bitter fruit that the two races planted. 
Now, as the young boy who had the precious demon bloodline, would he resist the invasion of the hundred races in the end?
Could him resolve the grudge between the two races and have his love in his arms?