This slope is called Fujimi-zaka.
The same name slope is in various places, there are three places in Chiyoda City.
Originally the town name Fujimi-cho would be a town created on a plateau where Mt. Fuji can be seen well.
Once upon a time that it was named after the beautiful figure of Mt. Fuji could be seen from this slope.
This slope joins the Hitokuchi-zaka slope at the bottom of the hill.