Jing Tide's Letter: Star Trail Relics

The old clock factory in Jingxi City often hears abnormal noises from gears on rainy nights. When Su Wan, a space-time trace restorer, was repairing an old pocket watch from 1920, he touched a piece of silver-grained paper inside the watch cover and fell into the afterimage of a boy in work clothes stuffing the piece of paper into the gear in the heavy rain. The next day she met maintenance worker Ah Che, who had rusty gears and similar silver patterns on his cuffs, and he rented the hotel next door to her.​ Time and space letterheads appeared one after another, and Lu Chen, the curator of the ancient books library, invited him to cooperate in studying the afterimages, but Qingyou, the owner of the grocery store, warned: A Che is a survivor of the Star Trail, and the letterheads are the time and space coordinates he has been searching for for hundreds of years. When Ah Che protected her from the men in black from the Cinder Realm, the silver pattern lit up to reveal the family emblem; her grandmother left home after leaving home with an old silver pattern clock, which contained half a map of the ruins of the Star Orbit Territory.​ Only later did Su find out: the letter was the memory of the Xinggui family, the mirror birthmark on her left hand was the mirror key for perceiving time and space, and the afterimages of Jingxi City were traps in the Ember Domain - they wanted to catch her to open the ruins and tamper with time and space, turning Jingxi into ruins. Ache said that "the holder of the mirror pattern is the last light of time and space", but was afraid that she would be involved in the destruction of the star orbit field.​ When the gears of the clock factory rotate in the opposite direction (time and space are chaotic), and Lu Chen leads the Cinder Realm to surround the ancient book museum, Su Wan must make a choice: wash away the mirror pattern and escape, or take all the letters and accompany Ah Che to the ruins to protect the order of time and space...