[Near-invincible protagonist + spatial powers + multiple heroines + zombie-like heroine + a villain who turns wicked and utterly deranged + kills without hesitation + aliens]
Two years into the new era, after the apocalypse, my childhood sweetheart, a brother-spoiling sister, betrayed me.
Not long afterward, I was voted to death by the Human Alliance.
I returned, reborn with a hatred for the new humanity!
While everyone else was still adapting to the apocalypse, I had already quietly seized all the strategic supplies left behind after the great cataclysm.
Everyone who voted to kill me will die by my hand!
Only the truly good-hearted new humans will be taken in by me and put to work in Infinite City!