Pls tell me the exact address of the accommodation.
Bc there are multiple railway stations in the vicinity,
it is necessary to reduce the walking section fr the station.
At the present, there is a bus that goes near,
but there is a possibility that not everyone can ride at once.
At least two taxis are needed, and there is a high possibility
that it will not be possible to get on without making a reservation.
The fare is obviously expensive.
Taking regular commuter train(s) is enough,
but can not judge whether walking a little without transferring
or making it the closest station with one transfer.
If you choose no transfer plan, you must cross the bridge
fr "Asakusabashi stn" of (Subway) Asakusa line,
then go to Ryogoku area by walk a bit longer. (no hard slopes, though)https://goo.gl/maps/kpgpVa5nYct