Since the government's relaxation of COVID-19 border measures in October 2022, coupled with the weak yen, the number of foreign visitors to Narita Airport has continued to rise. In 2024, the number of foreign passengers using international flights at the airport surpassed 20 million annually for the first time, reaching 21.79 million -- a 20% increase compared to pre-pandemic 2019. The trend continued through January-March 2025, with a 20-40% rise from the same period in 2019. The airport's four immigration halls across three passenger buildings feature over 100 inspection booths. During peak times, staff from other departments are mobilized to open as many booths as possible. Efforts include significantly increasing booths for foreign nationals and separating those for medium- to long-term residents, who require more time, to expedite the process. Despite these measures, wait times have lengthened.