If you have been in Tokyo and familier with train, etc., you may want to take your companion to newly redeveloped Marunouchi area. You just take Narita Express to Tokyo station and Marunouchi is west side of the station. It has many nice restaurants which serve tasty and reasonable lunch special. After the lunch, you can walk around Marunouchi where is very clean and pretty and also Emperor's palace before heading back to Narita.