Keiさん
Thank you very very much for your kind. ^__^

Kei is very kind,always smile,friendly and he helped us everything as well as he can. If you choose to stay here,please don't worry because he will suggest about how to use your room,toilet,kitchen and house's key very clearly and he can speak English very well. If you don't understand about transportation in Japan, he can explain you clearly about train's line and the places where you want to go.
Although his house is a little far from Aoto station,but you can stay there comfortable and near the station are supermarket,convenience store,restaurant,bakery and you can go direct from Aoto station to Narita Airport,it can save your time.
If you choose to stay in Kei's house,you will see his kind and you will get helping from him absolutely. ^^
Thank you again,Keiさん. ^_______^