Here are three different ways to approach this write-up, depending on the "vibe" you’re going for: Option 1: The Psychological Thriller (Focus on Paranoia)
"Everyone remembers the day Leo joined our class. He had the right uniform, the right smile, and he knew exactly which desk was empty. He fit in so perfectly that it took three weeks for someone to realize he wasn’t on the official roster. By then, he already knew all our secrets. He wasn't just a stranger in a classroom; he was a mirror, reflecting back exactly who we wanted to see—while hiding a motive that was far more predatory than a simple prank." Option 2: The Supernatural/Horror (Focus on the Uncanny) 3 : The False Classmate
How easy it is to blend in when you act like you belong. Here are three different ways to approach this