Work Text:
Gemini Killers x Vigilante Reader (Prater’s Group) — Yandere Headcanons
• The fascination starts with your code.
You’re different from the rest of Prater’s people. You believe in something. You kill because you think it’s right. The twins, who kill for symmetry and balance, can’t decide if that makes you noble or naïve… but they can’t stop watching you.
• You’re a mirror they didn’t expect.
They see parts of themselves reflected in you—the control, the discipline—but inverted through morality. To them, you’re what they could’ve been if they’d ever believed in redemption.
• They don’t stalk you, exactly. They orbit you.
Always close, always nearby. If you’re on a hunt, one of them will “coincidentally” be working the same trail. When you turn around, they’ve already vanished, but you’ll find small signs they were there: a clue left behind, a cleaned weapon, a message you didn’t write on your burner phone: “Don’t go alone next time.”
• They don’t want to change you.
Unlike most yanderes, they admire your independence. They’d rather break everyone else who threatens it. Their obsession isn’t about ownership; it’s about containment. They think if they can just… keep you close, the world can’t ruin you the way it ruined them.
• But the moment you get hurt, everything snaps.
If you come back from a job bruised, they turn silent, too calm. The next day, whoever touched you is gone, and the scene looks nothing like your work. Cleaner. Colder. Symmetrical.
• You become the third constant in their pattern.
They’ve always seen the world in twos—reflection and counterpart, creation and destruction—but you’re the anomaly that completes it. They start planning around you, syncing kills to your schedule, leaving “balance offerings” only you’d recognize.
• They study your methods.
They know your trigger points, your preferred tools, even your justifications. One twin finds it beautiful, the artistry of your restraint. The other finds it maddening, the way you won’t give in to chaos.
• Jealousy shows differently in each of them.
The analytical one withdraws, dissecting your every move in silence, eyes full of questions. The emotional one gets protective, inserting himself into your missions under the guise of backup. Between them, your life becomes a tug-of-war of watchful devotion.
• They treat your victims like rivals.
Every kill you make feels like a conversation to them, a declaration of what you value. So, when you execute someone for hurting others, they read it as a coded message: you still believe people can change. They want to prove they can too, by killing “for” you.
• They call you their “axis.”
One of them slips one night: “You don’t revolve around us. We revolve around you. You make the world stop spinning.”
It’s a confession and a warning. Be prepared to accept their obsession because it's not going away. You are going to be in each other's worlds. It's meant to be.
• If you ever confront them, they don’t deny anything.
No excuses, no gaslighting, just quiet honesty. “We keep you safe. You keep us sane.”
• They’d rather die than let you see their chaos.
You’re the one person they try to spare from their true brutality. Their killings become cleaner, the victims more morally grey—as if they’re trying to impress you by pretending to be good.
• Make no mistake. They’d kill for you.
They don’t want to harm you; they want to remove everything that could. Violence is their love language, disguised as protection.