There is a short anime movie names "The Garden of Words" by Makoto Shinkai, which is the main reason I made a visit at this park.
Even after traveling to Japan 4 times I managed to get lost on my way to this place, but in the end I found it before it closed.
I love to walk around a garden while having all the tall buildings in the background. It's like a little paradies where you can get new energy.