A slot machine issues a ticket with a ticket ID; a server manages a remaining amount in to the ticket; a ticket liquidating machine liquidates the ticket by exchanging the ticket for cash. A pouch pay terminal is held by a pouch payer and a cashier terminal is set at a cashier counter. Both the pouch pay terminal and the cashier terminal communicate with the server and can acquire remaining amount in a ticket and perform liquidation of tickets obtained form a player. The persons operating the pouch pay terminal and the cashier terminal take the liquidated tickets to the ticket liquidating machine to get cash they have already paid to the players.