In a car accident, Jiang Yuan lost his childhood sweetheart Lin Musheng. On the rainy night of the anniversary festival, she unexpectedly gained the ability to sleep across dimensions - entering a parallel world in her dream, where Lin Musheng was still alive, but was destined to die in an "unchangeable car accident" three days later.
Every time she saves Lin Musheng, the person with the deepest bond with them in that world will die suddenly; every time she crosses dimensions, she will lose a memory related to Lin Musheng.
When the clues from the twelve worlds were put together, she discovered that the bond between their childhood sweethearts was a "bug" that time and space could not bear, and Lin Musheng's death was the only way to correct it.
She had to make the ultimate choice between "saving her lover" and "protecting her family", but before her memory disappeared completely, she could no longer even remember "why she loved him".
Purpose: 1. Fate and choice: Faced with a destined ending, do human efforts still have meaning?
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2. Memory and Identity: When memory is taken away, can love still exist?
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3. The price of love: Saving one person sometimes means sacrificing another important person.
