In the anime, latter half of the first season, we see that Kumoko saves a baby human vampire from some bandits and later guards her by camping out near the town. We also know that this baby vampire is a reincarnation. (I believe it's Negishi Shouko)
There's an adult Sophia vampire that serves the Demon Lord Ariel. We also find out she's a reincarnation. I thought these were both one and the same, just huge time gaps, but in episode 20 we see adult Sophia heading to attack the town where baby Sophia is, and from what I can tell it's in the same timeline. Are the two Sophia's genuinely different people, connected in some way, or are they the same person and I'm misunderstanding the timelines?