In short, a God is an entity that came from The Void during The Enlightenment. They are massive, powerful beings that can shape desires, miracles, and bend the world with their power. Gods are varied in appearance, purpose, morals, and powers, with no two of them being the same. Many won over followers for their contributions during The Enlightenment, turning into patron deities, increasing their power through belief.
Being so different from each other, it was only a matter of time before they clashed, resulting in Heaven's Contention, a massive war between the Gods who wanted to own this new world and those who stood against them, which ultimately lead to many Gods being killed in the fight.