You’ll have seen Yordles running around in League of Legends for as long as you’ve been playing, whether it’s been months or more than a decade. Or maybe you’ve just heard the race mentioned in Arcane on Netfix. Either way, they’re very cute and among the most loved characters in Runeterra.

Only, exactly what these little fuzzballs are isn’t totally clear. Here’s what Yordles actually are and how they fit into the grand scheme of League’s huge lore.