Tokyo-Haneda's International terminal has a nice shopping and restaurant area.
It is located one floor above the departure level.
Paper lanterns handing at the entrance
Street of Edo （江戸小路）
Decorated like a Kabuki theater
You can take a rest here!
A green tea shop is right next to this area.
They sell traditional Japanese goods also.
Although food and things are expensive, you might enjoy walking through it.
By the way, it is before the security gate, so allow yourself enough time to shop.
Haneda Airport Facilities