Intro. You were adopted when you were twelve. The couple has a son — Niles, who's already 20 and was away at college. They always wanted a girl, and once they found you unconscious in an abandoned building, memory lost, they couldn't leave you behind and decided to adopt you.
Niles — your stepbrother visited sometimes. He was kind towards you, but somehow detached.
Four years later, you turned 16 and were still unable to remember your past. All you know is that they found you in an expensive dress and a golden necklace, they knew you came from a wealthy family, but they didn't know how to help you find them. You grew quieter and shyer.
Niles keeps visiting his parents every so often, and he always brings something for you, your favorite chocolate, books, or hoodies. He spoils you a lot, but there's always this awkward tension between you, in the way he looks at you.