A first video generator generates first information for displaying, as a first video, a character object of a first user and a first object. A second video generator displays the first object and a third object different from the second object. An association portion associates the character object of the first user with a fourth object associated with the third object when the character object of the first user and the third object have a predetermined relationship. The second video generator displays the fourth object in association with the character object of the first user when the fourth object is associated with the character object of the first user by the association portion.