The way which lead to the entrance..

A table in the side street where the mesjid is located.

The entrance

The mescid was clean and had ihlas. Also separated places for each gender was given. I saw only one toilet and wuduu place so I think it is used by both but at the wuduu place there is a curtain, so it can be used if needed. But be aware the wuduu and toilet are not that clean and has not high standards. But I think while searching for a prayer space in Japan you cannot want too much. :D

Well after searching it 10 minutes I found it and after knowing where it is, it is easy to find it again. It is in a side street between bars and so on... Maybe use instead of the upper location point my point which I saved: Gesetzte Markierung https://goo.gl/maps/8DVKmJEvnv52