Bankers are one of the 13 Jobs available in Roville.
The Players need to deposit/withdraw a certain amount for the npcs, which involves pressing or clicking 2 buttons. The banker job is a job at the bank.
To Start working, NPCs will ask to deposit or withdraw a certain amount. You must click the amount and pick the withdraw or deposit button. If you get it wrong, they will be mad at you and walk away, also decreasing the money you earned and Job Progress by a small amount.