On the first day when physics genius Shen Xinglin transferred to another school, he met Jiang Chen, who claimed to be from seven years in the future, in an abandoned laboratory building.
Twenty-four-year-old Jiang Chen is the most dazzling star in the world of time physics. His left wrist is wrapped with scars left by experiments, and his memory is being eaten away by unknown forces. When he returned to his alma mater to investigate the truth behind his father's disappearance, he was shocked to discover that the gentle senior who saved him back then was actually the "bully" recorded in the files. What's even weirder is that he frequently sees his seventeen-year-old self in reality - the boy who should only exist in the past.
The two time-spaces begin a dialogue. Shen Xinglin asked a question in the physics notebook in 2017, and Jiang Chen found the answer in the same location in 2024. They exchanged formulas and thoughts after seven years, touched the glass of the same window on a rainy night, and talked to themselves across time on the rooftop.
Until the two discover the cruel truth at the same time: they are "double solutions" of the same person in different time states, split and coexisting due to an undisclosed time experiment accident. And the corrective mechanism of the universe has been activated - one of them must "never have existed."
This is not a simple time travel story, but an ultimate experiment in self-awareness. When the end of the formula is a paradox, when salvation means self-erasure, in two timelines where only one can live, how can they prove that each other existed?
"I taught myself physics for seven years until we discovered that only one solution to the time equation can survive."
Concept: campus novel, two male protagonists