Echo: 2030

In 2030, the world will fall into a strange "technological stagnation" - all high-tech research will fail inexplicably on the eve of success. Lin Yuan, a college student in the Department of Physics, is just an ordinary young man who loves to eat spicy strips and helps his grandma run the canteen. Until one day, a strange image flooded into his mind: a huge city hanging upside down, and a cry of despair. The mysterious female painter Shen Wantang who moved next door stared at him for a long time: "Your time frequency is messed up." She said he was a key. She said that 2035 is the end of human civilization. What she didn't say was that in order to find him, she had traveled alone for one hundred and fifty years, watching all the people she loved say goodbye one by one in the long river of time. This time, she just wanted to keep him. Even if the price is to disappear forever from the world where he exists.