I’m afraid to say it because I don’t want someone to steal the idea, so just know I said it first.

So my idea is to work off the trope in RPGs “You don’t have any space in your bag”

So what if there was a person behind the scenes sorting all your items in your bag and have to give them back to you like a personal bank. And has so little space to put the items.

And banks have many people who go to them, so what if it was a multi use item bank where the person has to use the little amount of bag storage between everyone and they have to share items because it’s a bank with little storage.

So you play as the bank teller having to give every one their items before they get mad at you and if you put the items on the floor they can only be there for so long. And you can use some of the items if you wish. So you need to prioritize what items to give, drop, and use. Then you can have a satisfaction rating at the end.

Abd this combines “you’re not the main character” with the main theme.