A disillusioned time traveler from a parallel universe must confront their own choices and sacrifice their existence to prevent a catastrophic event, only to discover that the event was caused by their own actions in the past.
A disillusioned time traveler from the parallel universe who is on a mission to prevent a catastrophic event from altering the course of history, facing personal dilemmas and moral choices along the way.
The protagonist encounters a version of themselves from an alternate timeline, forcing them to confront their own choices and the impact of their actions on the parallel universe.
In the end, the protagonist sacrifices their own existence to set things right in the parallel universe, ensuring that the catastrophic event never occurs. As they fade away, they realize that their actions have restored balance and prevented untold suffering.
Twist: The protagonist discovers that the catastrophic event was actually caused by their own actions in the past, leading them to question the morality of sacrificing their existence to fix a mistake they made themselves.