On July 15th of the third year of Yongchang, Yinghuo guarded his heart.
Shen Zhaoyue, the daughter of the Qintian Prison, calculated the disaster for the emperor, but her father asked her to hide it - that night, the last star of the Beidou went out, and she was engulfed by a blue light, and when she woke up, she was trapped in a strange modern city.
She thought time travel was an escape, but she didn't know that every time she returned, she was accelerating the disappearance of her loved ones. Her wet nurse, younger brother, mother, father... The people she loved most were erased from history one by one. Only she remembers them.
What she didn't even know was that every time she traveled coincided with astrophysicist Gu Huai's "space-time resonance" experiment. Her appearance was summoned, and the price was - after seven times, everything was in vain.
When the bronze mirror has cracks running through it, and when her loved ones are left with only memories, she must choose between "going back to say goodbye" and "leaving behind and forgetting".
But she didn't know that some people, even if they were forgotten, would still be waiting for her in the cracks.