I Can See the Weird Countdown

[She still has 72 hours, but after the countdown reaches zero, everyone will forget her! In the first year of Jiang Chi's night train journey, he received an order with no destination. The passenger was a little girl wearing a yellow raincoat, and the destination read: Bailu Community, Building 4, 404. But Bailu Community has been demolished in half, and there are no 404s in the four buildings. The girl named Chen Xiaoman does not appear in any passenger records. What's even stranger is that Jiang Chi saw a string of red numbers above the girl's head. 02:17:16. The girl will disappear before the countdown reaches zero. From that day on, Jiang Chi discovered that there were many more numbers in the city that others could not see. A red light that never changes, a room without a door number, a last bus that only appears on rainy nights. All weirdness is counting down. And he must find the rules that they don't want others to know before the numbers return to zero. But Jiang Chi didn't expect that the countdown above his sister Jiang Mian's head had already started.