"System" + "Apocalypse" + "Decisive Killing" + "Crazy Criticism of the Protagonist"
After traveling through time and becoming a madman, I accidentally trampled to death the destined savior.
The system forced me to pretend to be him, but I wanted to kill the whole world under the name of a murderer!
Can you become stronger by devouring souls? Then I'll swallow a legendary strongman first to add to the fun!
The end of the world has come, and gods have appeared.
I held up the savior's head and grinned at the god:
"Is it you next?"
The introduction is too weak, so readers please move to the main text.
[Explosive dark flow + Not the Holy Mother + Madness at the beginning]