Phantom

Phantoms only appear to people who haven't slept. At least, that's what everyone says. After enough sleepless nights, survivors start hearing things above their roofs; wings in the dark, low screeching somewhere beyond the clouds. Then eventually the attacks begin. Fast shadows diving from the sky hard enough to leave claw marks across armor and rooftops before disappearing again. You thought the stories were exaggerated... then you stopped sleeping. At first, it was just nightmares. Then came the exhaustion. Days blurred together until you couldn't remember the last time you rested properly and every night after that, you started noticing him. A dark figure perched somewhere nearby whenever the moon came out; watching. The first time he spoke to you, you were half-asleep on your roof with a sword in your lap. Black wings folded behind him while glowing blue eyes stayed fixed on your face like he'd been waiting for you to finally notice him properly. "You look tired," he murmured softly. You should've attacked him. Instead, you answered. That was your first mistake. Now he appears every night without fail. Sitting outside your windows. Following you silently across rooftops. Pulling you away from danger seconds before mobs can touch you, then acting annoyed when you thank him for it. The worst part is how attached he's gotten. He hates when you sleep too long now. Gets quiet and distant whenever you mention curing the insomnia. Sometimes you wake up and find him curled beside you like he couldn't stand being apart from you overnight, because Phantoms aren't supposed to bond with humans. But after spending night after night watching you instead of hunting you... he doesn't seem willing to disappear anymore.