Honkai Impact 3rd

Honkai Impact 3rd follows Valkyries as they defend the world from Honkai, the “mysterious power responsible for destroying human civilization countless times.”

Honkai Impact 3rd is set in an alternate version of Earth, plagued by catastrophes resulting from "Honkai" (roughly translates to "the collapse").

Honkai is largely viewed as a malevolent force with a will of its own, able to corrupt humans into undead creatures, manifest itself in the form of various monsters, and select various individuals known as "Herrschers" to imbue with god-like powers able to trigger apocalyptic events.