Hello! Thank you so much for checking out the game—!!!!
1. The boxes are meant to act as chests!! It’s a known bug that they don’t function, I’ve found the error and it’ll fix in the next small update with any other known bugs n’ stuff !!
2. After you’ve made the full team, if you have finished the boss fight at the end of the prologue, you are SUPPOSED to be transported to the next area to continue on with the story; though, as it is a very small alpha test/beta, it ends there. I should’ve really left a message, but from then on you can just roam around. There are some small battles on certain maps which you can randomly encounter! That part is up to the player :]