1,Where is the location of homestay?

The place you stay in is Chiba city.Chiba city is located at east of capital city Tokyo.It takes about 1 hour to Tokyo from Chiba city by train or car.The distance between Tokyo and Chiba is about 20miles(approx.30km).
Tokyo international airport is not located in Tokyo but located in Chiba prefecture.
This means that you'll land on Chiba at first in Japan.
It is very easy to go to Chiba city from Tokyo international airport.It takes less than 1 hour by highway taxi.