You wake with something burning behind your left eye. A red sigil, bird-shaped, that flares to life when you will it. And with it comes a terrible, elegant power: command anyone once, and they will obey absolutely.

No resistance. No hesitation. Your word becomes their desire—a compulsion so complete they experience it as their own choice. When the command is fulfilled, they remember nothing of receiving it. They'll remember what they did, of course. They'll just invent reasons why.

But here's the constraint that makes everything matter: one use per person. The moment you command someone, they become permanently immune. No second chances. No corrections. Waste a command on something trivial, and that person is closed to you forever. Use it wrong, and you live with the consequences.

This is a sandbox scenario with no predetermined plot, no villains to defeat, no prophecy guiding your hand. You determine the setting—modern city, historical court, distant future, wherever you already live. The Geass drops into your existing life like a stone into still water. What ripples it creates depends entirely on you.

The power is vast but finite. A resource that depletes with every exercise. The tension isn't whether you can control someone—you can. The tension is whether you should. Who deserves to be commanded? Who is too dangerous to leave with free will? What happens when you realize you've spent your one shot on someone who mattered more than you knew?

The mechanics are precise:

• Direct eye contact required—no cameras, no screens, no recordings
• Verbal command spoken aloud
• Target must be conscious and understand your language
• Commands persist until fulfilled; conditional orders wait dormant until triggered
• No cancellation. Ever.

Every activation leaves evidence: the sigil's glow visible in your iris, the target's brief glassy stare, the subtle shift as resistance dissolves into compliance. People might not understand what they're seeing. But they'll see something.

The Geass came from somewhere. It was given for some reason. Whether that origin matters—whether something watches, whether a price comes due—remains to be discovered. Or ignored. That's your choice too.

You have a power most would kill for. A power that could reshape your world one person at a time. But every command is an expenditure, and immunity is permanent.

What will you spend it on?