There is a Matsumoto pharmacy enroute to host place. Instructions to the location are very clear. Tokyo homestays are small so I was expecting a small room but it was manageable for me, 2 adult and one kid so we have plenty of sleeping area with their 2 double bed. 24 hour Convenience stores are nearby enroute as well so no issue of hunger when checking in late at night from Haneda Airport. Overall, I am pleased with the outcome of my stay.