I had wondered about it, since you aren't the only Mimikyu present...

[Ring Spirit immediately comes to mind.]

But I know enough ghost stories to know that ghastly fates and dark secrets are par the course.

Still, I'm sure your true form is still more appealing than Mara.

[He tries so, so hard to repress the image of that hideous thing, resulting in a fuzzy, vaguely phallic shape atop a chariot.]