関連ワード:  how much is a flat in japan    how much is a flat white in japan    how much is a flat screen tv in japan    how much is an apartment in japan    how much is an apartment in japan to buy    how much is an apartment in japan per month    how much is an apartment in japan tokyo    how much is an apartment in japan usd    how much is an apartment in japan cost    how much is an apartment in japan yen