A skeptical engineer on a space station near a black hole discovers a time-travel device, leading to a conflict with a mysterious researcher, but ultimately must use it to prevent a catastrophic event, only to realize the researcher is their future self guiding them to embrace time-travel.
Protagonist: A skeptical engineer who initially doubts the feasibility of time-travel; deuteragonist: A mysterious researcher with knowledge of the space station's unique properties and a hidden agenda.
The protagonist discovers a hidden chamber on the space station containing a device that allows for controlled time-travel, leading to a conflict between their skepticism and the deuteragonist's mysterious agenda.
In the end, the protagonist reluctantly uses the time-travel device to go back in time and prevent a catastrophic event from occurring on the space station. They ultimately come to terms with the reality of time-travel and work with the deuteragonist to ensure the safety and stability of the space station.
Twist: The deuteragonist turns out to be a future version of the protagonist, who traveled back in time to ensure the safety of the space station and guide their past self to embrace the concept of time-travel.