During the event, when the player enters a Duel World area for the first time since the start of the event, they will be greeted by a cutscene of Carly Carmine predicting their fortune of the day. Fortunes last for 24 hours after being read (except the last fortune, which expires at the end of the event). The player's fortune is selected at random.
The player's fortune specifies a reward that the player will receive for performing a certain action. The player's fortune has a corresponding "Fortune Fairy"; "Fortune Fairies" that correspond to better fortunes (i.e. lower-Level "Fortune Fairies") have better possible rewards. While each "Fortune Fairy" has several possible rewards, the reward that the player will receive is specified when their fortune is told.