Neşe and her friends are preparing for a big party. While they are decorating the house, an uninvited guest knocks on their door. However, no one recognizes the child who has arrived. He is a prince from a fairy tale land whose memory has been erased as a result of a mistake. Every moment the prince, who is the joy of the fairy tale realm, spends in the world causes unhappiness to reign in the fairy tale realm. Neşe and her friends embark on various adventures in an unfamiliar environment to send the prince back to where he belongs and restore the joy of the fairy tale realm.
