I Became a Witch in a World Full of Urban Legends

Day 1: My vision seems to be blurring a lot recently, and I keep seeing strange things in the corner of my eyes. Look! That cabinet is moving on its own. I’ll go take a look.
Day 13: I see them, damn it! Why is this world full of strange things?
Day 101: There is nothing to be afraid of anymore! Putting on this long dress befitting a witch, I, too, have become a monster!