A display control device according to an aspect of the present disclosure performs processing using (a) a main content item to be displayed by a display unit and (b) display elements arranged in a chain from which the main content item is selected. The display control device includes the following units. An importance calculation unit obtains additional information to be notified to a user and calculates an importance of the additional information. A relevance calculation unit calculates a relevance between the additional information and the main content item. A position determination unit determines a position to which the additional information is to be inserted in the display elements, based on the calculated importance and the calculated relevance. The position determination unit determines the position to receive more attention from the user as the importance and the relevance of the additional information are higher.