[The early chapters have a bit of an invincible hero and a happy, fulfilling life; there will be more heartbreak later. Best to check your brain at the door.]
A disastrous run of gacha pulls makes him transmigrate.
He thought he had arrived in another world, but it turned out to be Earth, five hundred years in the future.
Mutant beasts roam everywhere, and fewer than one in ten people have survived.
The devotion of those who prayed moved themselves and others, but not the gods.
Humanity’s endless sacrifices failed to reclaim its territory. Instead, they brought even more terrifying creatures into the world.
The prosperity of the shelters speaks of humanity’s former glory.
The world beyond the walls tells of the apocalypse’s brutality.
Some live, and some die.
In this vast ocean, I cannot save everyone.
If that is the case,
then I will leave everything behind
and wage war
against you, the developer!