I have been going to this Denny's for so many decades that I have seen the interior completely remodeled at least half a dozen times. The staff in this Denny's changes constantly! Sometimes, every two weeks. I often wonder if this is a training restaurant of some kind because the staff changes so frequently and so completely, from the manager right on down to the wait staff. Sometimes the wait staff is all male, sometimes all female, and sometimes mixed, which also makes it feel like a training restaurant. On the plus side, the non-smoking area has been clean and sweet-smelling for over a decade. This was one of the very first Denny's in Japan to go smoke-free. In fact, they added a smoking area during the last renovation. It is very small, completely enclosed, and usually empty.