A self-aware nerd
Erica is the little sister of Lucas, one of the heroes of the famous fantasy series Stranger Things. We meet her for the first time in season two when she makes fun of her brother several times, in particular when he puts on a Ghostbusters costume for Halloween or when she has fun to steal his figurines to play with his Barbies. In season three, she regularly comes to the ice cream store where Steve works to ask for free samples. Later, Dustin picks up Russian conversations on his radio and when he asks Steve for help translating them, they end up working together as a threesome with Steve’s bored co-worker Robin. They soon discover that something is indeed going on at the mall, especially in one of the warehouses, and decide to investigate. But their only solution is to go through the ventilation pipes and neither of them is small for that. That’s when they think of Erica who is never far from the ice cream man. All four of them then find themselves in something much bigger than they imagined.