A server device determines a selected game content from among the multiple game media base on a request from a user belonging to one team, and if the selected game content is a first selected game content whose associated attribute is of a specified content and a returnable condition is met, displays the first selected game content to the user in a state in which the user can select return or acquisition of the first selected game content. The server device, if the user selects return of the first selected game content, stores, in the memory and in association with the user, a game content that is different from the multiple game media, and if the user selects acquisition of the first selected game content, stores, in the memory and in association with the user, the first selected game content.
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