You are something that this world has never seen, something that should not be, something not understood or known. You are a living scarecrow.

This world does not know magic, nor monsters; it does not know the bizarre. You are the first and an outlier of your kind, through and through incomprehensible to those of this world. They don't know what you are; they don't understand. I think it would just be boring to only have humans, so there are humans, dwarves, orcs, elves, and goblins. Aside from that, the only things that exist in this world are wild animals. They do not know monsters; they do not know the bizarre; they do not know deities or the undead.

(Feel free to recommend other creatures, entities, and beings that you would like to be the first of.)