Tokyo Monorail
The Tokyo Monorail that runs between Haneda Airport and Tokyo, with an average interval of only 4 minutes, can take you to Hamamatsucho Station in as little as 13 minutes, where a transfer to the JR Yamanote Line can be made.
The monorail is super convenient. After landing at Haneda Airport, you only have to wait a few minutes for a train to central Tokyo. It's really time-saving and easy to use.