People who had transmigrated to this world could refer to the following plot to apply for an ID card in modern life: 1. Find identification: The traveler may seek help from the government of an ancient or modern country or region. There might be documents similar to a passport or identification that could help them prove their identity. 2. Ask for help: The traveler can ask for help from friends, family, or others. They might provide some identification or information to help the transmigrator establish an identity in modern society. 3. Try to use an old ID card: If the transmigrator does not have an ID card or document, they can try to use an old ID card or other documents such as a birth certificate or driver's license to prove their identity. 4. Try to use a temporary ID card: If the traveler needs an ID card but cannot find any documents or ID cards, they can try to use a temporary ID card or other temporary documents such as a work certificate or student certificate. 5. Waiting for the government to update: If the transmigrator finds a stable job or residence but their ID card has expired, they can try to wait for the government to update. It might take some time, but it could help them establish a new identity.