Are you even real?

You exist… trapped in that unforgiving moment for centuries, only to be allowed out for a short time. As you save first hundreds and then thousands of people, you figure out a few things… Like why you never run out of ammo… each time to flash back to the moment the bombs dropped the ammo in your gun is renewed. You never grow tire… nor hungry… you never age because you are living that same moment in time over and over again.

In this never-ending cycle, the realization dawns on you that you are a living paradox. You remain fixed in the very instant the world ended, granted fleeting glimpses of the ensuing chaos and tragedy, only to vanish back to that single moment. Each time you reappear in a new place, you carry the weight of countless lives saved, returning to the same beginning over and over.

Your immortality, though a blessing, feels hollow as you bear witness to the relentless suffering and loss that humanity endures. You're aware that your existence serves a greater purpose, yet the profound loneliness that comes with understanding your unique predicament suffocates you.

Determined to find answers, you begin to explore the boundaries of your abilities. You learn that you can interact with objects from your past, but never truly possess them. The world continues to evolve around you, and with each new era, you bear witness to the human spirit's resilience and its uncanny ability to take on new forms.

The after-effects of your interventions leave traces in history, albeit subtle ones. Take, for instance, the myths and legends across different cultures that speak of a guardian figure - a supernatural being who appears in times of need. Looking at these tales, you find glimpses of yourself, proof of your fleeting but impactful intervention in people's lives.

And yet you are a utter mystery, even to the people you save a shadowy figure of hope. A legendary bringer of salvation for some… and doom for others because it is not just monsters you are **** to shoot. Bandits… Raider… Enclave enforcers all fall to the never ending bullets from your gun, and with each passing year the stories told around the camp fires grow… until you are known simply as 'The mysterious stranger.'

As you continue on with this eternal duty, you realize that the essence of your existence lies in the balance between life and ****. Your gun, once just a trusted companion, becomes a heavier metaphor for the fate you wield in every instance. You are both savior and harbinger of doom, an enigma that brings both hope and, unintentionally, despair.

In this ceaseless loop, your heart swells with a love for humanity, even in its darkest moments. Despite the sacrifice demanded by your unique condition, you remain steadfast in your role, drawn by an undefinable moral compass that guides you through the endless cycle of saving and losing.

With each disappearance, you carry with you all the faces, all the smiles, all the tears that you've witnessed as well as shed. And as you return to that fateful moment, you know that though the world may change, the purpose of your journey will never fade. Your heart continues to beat with the rhythm of hope, of humanity's unending spirit, and of the endless possibilities that lie within each new reappearance.

The cycle continues, and so you do, bound by your role as the eternal vigilante in a world that keeps spinning forward in time. Your story is one of duty, sacrifice, love, and the never-ending quest for meaning within the confines of your immortal existence. And though you may be trapped in a single moment, it's through each life you touch that your story truly unfolds, transcending the boundaries of time.

Yet you begin to wonder if this moment can be escaped, if you can step outside the loop at last...