I had the same experience last year in July - we stayed in a 5 bedroom apartment in Nakano, Tokyo which was run by a Phillipino lady who was a Japanese citizen.

I had the same experience last year in July - we stayed in a 5 bedroom apartment in Nakano, Tokyo which was run by a Phillipino lady who was a Japanese citizen. She spoke good English along with Mandarin Chinese. She caters for a niche market of large families - the 5 bedrooms can hold 10 people comfortably - each has a bed. It was a great neighbourhood - very close to the Shin-Nakano station on the Marunouchi line.