Osaka Metro is the main subway system serving the city of Osaka, Japan. It consists of eight lines that cover a total distance of approximately 138 kilometers, providing efficient transportation for both residents and visitors. The system is known for its punctuality, cleanliness, and user-friendly signage, making it easy to navigate. The metro connects key areas of the city, including popular districts like Namba and Umeda. It operates from early morning until midnight, with frequent trains during peak hours. Osaka Metro also offers various ticket options, including day passes, to accommodate different travel needs.