Pent-house of top floor of apartment in front of Japanese Garden park beside River Sumida. I use this as private office. I worked long time at the University as professor and now retired and working in this office. First of all opened to a woman traveler who wants to get sightseeing more private and a little bit closer to citizen of Tokyo. In the case having communicated enough before promising , a couple will be welcome as well. German speaking is also welcome, as I lived there in the past.