In the 20th year of the Republic of China, female student Tang Yingxue discovered her great-grandmother's mysterious diary in her family's old house. Simplified Chinese and English terms were intertwined with unknown codes, revealing a shocking secret: the great-grandmother who was dismissed as a "feudal remnant" was actually the first generation of time traveler a hundred years ago. The last page of the diary is stained with bloody words: "If you read this, it means that my plan has failed. But don't be afraid, I have buried seven 'restart points' for you..." When the sound of military police boots approached the alley, Tang Yingxue triggered the first "restart point" during her escape and awakened the "time and space afterimage" power - she could see the key fragments that happened in a specific place in the past 24 hours. And every restart point hides a "relic" that can change the trajectory of the times, and a piece of history that has been erased...
