We provide the system. [Solution] A device for inputting user preference information and recording said preference information, A device for selecting suitable food based on the aforementioned preference information, In order to collect supplementary information regarding the selected food, a device that works in conjunction with other devices is used. A device that presents the selected food and supplementary information to the user, A device for completing the procedure for purchasing the aforementioned food, A device that reflects the user's past history and presents food and beverage combinations, A system that includes this.