I expect no introductions are needed, but you can think of me as Kris.
I am what Sir Terry Pratchett calls an anthropomorphic personification, and I reside in a congruent reality which lets me ignore time for a night. Specifically, for the night before Christmas. On that night, I travel the world quick as a wink. It doesn’t seem that way to me, naturally. I experience thousands of unsleeping hours in this one night, joyfully making my rounds. Time dilation is weird that way.
You all know what I do in my travels of course. Or think you do.
It’s mostly what you expect: Rushing about in my flying sleigh, sliding down chimneys, partaking of the milk and cookies and other treats left out for me, leaving presents for the good boys and girls, leaving lumps coal for the naughty ones. (Though if I’m being honest coal is a little bit passé these days. In practice it’s filling the naughty stockings teasingly full with bulky and unwanted things. These days it’s often walnuts in the shell, or novelty erasers, or black licorice. The world is a passive aggressive place, and this helps teach the children to understand that.)