...Given that it seems like a relatively common occurrence in Jun's manga and that you told me only a few minutes ago that a version of you appears in books from his world, that suggests this sort of thing happens in many worlds.

[He looks to the tree again.]

My ancestors created the Divine Beasts some ten thousand years ago, if the stories are to be believed. [He personally thinks the span of time has been exaggerated, but that's neither here nor there.] Are yours similarly ancient, or were they built more recently?