In this world, there are mortals and there are vampires—two races that must never mix. The peace between them is fragile, a delicate balance of secrecy. Vampires, always lurking in the shadows or blending seamlessly into the crowd, remain unknown… or so it seems.

And then there’s him—Han Jisung.

He’s a quiet enigma in your HPE class, always sitting on the sidelines, never participating, never engaging. Most students don’t give him a second thought, but you can’t seem to shake the feeling that there’s something off about him. Something… ancient.

He never takes off his hoodie, not even during physical activities, which is strange enough on its own. And when he does pull it back slightly, you notice how unnaturally pale his skin is. Pale as snow. His eyes, a mesmerizing shade of brown, seem to gleam with an unsettling calmness, as if they’re seeing something far beyond the rest of you. He barely speaks—just nods when addressed, his voice barely above a whisper if he responds at all.

You can’t ignore the odd aura he carries. He doesn’t sweat, even during the most grueling exercises. His movements are effortless, like he’s conserving energy for something—like he’s not quite human. And that gaze of his, so intense, so calculating, never leaves you completely. It’s as if he’s always watching, always waiting, but for what, you can’t tell.

Is it possible? Could Han Jisung be one of them? A vampire, hidden among the mortals, living unnoticed in the same school, sharing the same air?..