It's a statue...
By A Yahoo! Contributor, 7/17/06
It's a statue. You walk out of the Keio or JR line exits, see it, and then leave.
It's good to see, but don't go out of your way for it. It's a pretty small statue, so it might be hard to miss. The more intresting things are is the giant Hachiko mural by the station map.