Tokyo Metro is a major subway system in Tokyo, Japan, providing efficient public transportation across the city. It consists of 9 lines and serves over 7 million passengers daily, making it one of the busiest metro systems in the world. The network connects key areas, including business districts, shopping centers, and tourist attractions. The system is known for its punctuality, cleanliness, and safety. Trains run frequently, with most lines operating from early morning until midnight. Tokyo Metro also offers various services, such as multilingual signage and mobile apps, to assist both locals and visitors in navigating the city.