The Gluttonous Yogseul is less a god and more an idea, a statement on the universe as a macrocosmic entity. It is said to be eternally self-consuming, an ever-hungry being that devours itself, but can never be satisfied. As every bite it takes of itself becomes a part of itself anew, Yogseul cannot truly end, only change form.
Though natively from the nation of Baag-Aggi, belief in Yogseul arises in many small pockets throughout the system. There are often attempts to discourage these cults, as in its extremes, worshippers of Yogseul embody their "god"'s nature... by devouring each other.