The Corrupted Angel (or just "the Angel") is the god of the Dia's Wish universe. While it did not create each human being individually, it
loves all humans deeply, even if it struggles to understand them.
The Angel is the source of the power that Combative Warriors have. It can bend reality to fulfill almost any deal and grant almost any wish, but there
are things outside of the Angel's reach. Specifically, the Angel cannot undo death, alter the flow of time, or change the relationship between its
creations and Corruption.
Warriors gain their angelic powers through bargains with "Sprites": little pieces of the Angel's will which take the form of feathers. A bargain consists
of a wish and a sacrifice, and binds the Warrior to the Sprite. This also allows the Warrior to access a miniscule portion of the Angel's power, usually
in the form of some kind of building-block of the universe, be it concrete or conceptual. As a result, some Warriors have one power, their angelic power,
and some have two, their angelic power and their bargained power.
The Angel shields the world from Corruption, which is the antithesis to angelic magic. Anything the Angel creates, the Corruption wants to destroy.
Because it cannot absorb infinite Corruption, the Angel must be regularly purified by a Warrior who is strong enough to take on leagues of corruption,
but not so strong that her power makes her look like another target. This means that the Warriors who purify the Angel are usually particularly powerful
students, rather than fully-trained Warriors.
The Angel exists "outside" the world, in a location known as the Outer Dimension. This is also where most of the Corruption is, and where it leaks into the
world from. The Angel might enjoy the world it has created, but it is unable to exist within the world without bringing a massive amount of Corruption that
would spell disaster for a city, or maybe a province or state.
I often liken the Angel's relationship to humans as the relationship between an adoring entomologist and an antfarm.