[Urban suspense + imaginative reasoning + unit mystery + no system] At three o'clock in the morning, relic organizer Lu Chen received a suicide note signed "Tomorrow". The letter contained the name of a stranger, an accident that had not yet happened, and a childhood secret that only he knew. When the prophecies came true one by one, Lu Chen discovered that every time he saved a person, the next letter would advance one minute. The seventh letter is addressed to himself. If he wants to live to the eighth day, he must find the person who wrote the ending for everyone before the city wakes up.