While your accommodation and most major expenses are included, here's an overview of additional costs to help you budget for transportation, meals, and activities:
Transportation
Shinkansen Tokyo to Kyoto: ~100/130 Fr. one way
Shinkansen Kyoto to Hiroshima: ~80/110 Fr. one way
Tokyo Metro single ride: ~1.5-2.5 Fr.
Food and Drinks:
Lunch: ~5-15 Fr.
Dinner: ~20-30 Fr.
Beer: ~3-5 Fr.
Cocktail: ~7-10 Fr.
Entry Tickets:
Shrines and temples: ~5-10 Fr.
Parks and gardens: ~5 Fr.