関連ワード:  how many nights to spend in osaka    how many nights to spend in osaka and kyoto    how many days to spend in osaka    how many days to spend in osaka and kyoto    how many nights to stay in osaka    how many days to spend in osaka kyoto and nara    how many days to spend in osaka reddit    how many days to spend in osaka kyoto and tokyo    how many days to spend in osaka expo    how many days to spend in osaka first time