Erotic RetrLife! Give Me Your Semen Please, My Master!

This is the worst world where a number of races kill each other.
In such world a powerless race "Human" can barely survive, forced to moving from one place to another by incoming threats of other races. The protagonist is one of humans.
But one day, the strongest and worst angel Michal has devastated an Elven village, and the protagonist died from aftermath of it.