Juju, a heap of garbage.
Two mighty beings fought in a demiplane, smashing everything into a rubbish heap.
The demiplane was completely destroyed, becoming a dead land.
Juju awoke amid that very heap of garbage.
Juju had no idea what kind of thing he was.
And he seemed to have a bit of a split personality.
Whatever!
First things first, become an evil god!
And so, the endless planes witnessed these strange sights:
Chaos whose singing could kill you.
Zouwu who lazed around and slept.
And Youyou, who was always stirring up trouble and getting into scrapes.
Three-in-one, that's me, Juju!
P.S. The protagonist is nonhuman and has no moral compass.