Hello Yumemi, yes, the hat & bag are included, as the photo shown. (n__n)
If you order standard size (about 2-3 weeks making costume time) and use the fastest shipping method (Premium Express, 3-6 days shipping time), it will reach you in 3-4 weeks after order's confirmed, around early May.
*All shipping information (including methods, cost & estimated delivered date) will be shown in order page, before payment; you can pay extra cost to upgrade shipping method there.
*Please remember to mark down the date (you need it) in the order form when you order it. :)