I stayed in Nayu's apartment with my three friends for a week, and we really enjoyed our stay. The place is quite big, and thus there's enough place for for people. The place is also clean and nicely furnished. Nayu's parents welcomed us and also brought us green tea and snacks. In addition, Nayu's father kindly took us to the train station when we left. The area is clean and peaceful, which is nice contrast to the bigger and more crowded places of Tokyo. I strongly recommend this place to any group whose staying in Tokyo for a week or more.