How Old Is Milim Nava in Re Zero

Alright, let's clear up a common misconception right from the start for anyone wondering about Milim Nava's age in the dark fantasy world of Re:Zero. If you've been searching for Milim Nava among Subaru and Emilia's companions, you won't find her there! Milim Nava is a central, incredibly powerful character, but her story unfolds in a completely different, equally beloved anime series: That Time I Got Reincarnated as a Slime (also known as Tensura)....