Mission: Retrieve Jude Heartfilia's Memento!

Mission: Retrieve Jude Heartfilia's Memento! is an anime-only event that took place during the Key of the Starry Sky arc.

Prologue
When Laxus fights a Gorian, he is found by Natsu and Gajeel who challenge him to a rematch. The news about the rematch is heard by the other members of Fairy Tail and Master Macao decides to liven it up with a festival to celebrate the rare occasion. The next day, Laxus fights and easily defeats Natsu and a scared Gajeel makes a run for it. As the sun sets, a trio arrives at Magnolia and makes their way to the Fairy Tail Guild.

Mission
The members of Fairy Tail question the trio, thinking that they are the people from Edolas but later realize that they are their Earth Land counterparts. Mary Hughes then demands them to hand over Lucy Heartfilia. The members of Fairy Tail refuse and begin to fight the trio. However, they are weakened by Sugarboy's Slime Magic and are eventually overpowered. Realizing that her friends are in danger, Lucy decides to surrender herself but Michelle interrupts her and declares herself to be Lucy Heartfilia. Wendy, Laki, Levy, Mirajane, Lisanna and Elfman follow her lead, all of them introducing themselves as Lucy. Annoyed, Sugarboy uses his Slime Magic to gather all the girls but Natsu attacks him, yelling at the real Lucy to escape. Mary Hughes orders Coco] to go after her and proceeds to fight the other members of Fairy Tail.

Lucy and Michelle are caught by Coco as they reach the forest but the two are able to confuse her with the help of Virgo and manage to escape. Meanwhile, Sugarboy and Mary Hughes continue to overpower the other members of Fairy Tail. As they fight, Sugarboy tells Mary Hughes that they should go look for Lucy too. Mary Hughes agrees and uses her Magic to create an explosion with Natsu's Magic.

After recovering, Natsu, Wendy, Happy, Carla and Pantherlily go to search for Lucy and Michelle. However, Wendy, Carla and Pantherlily are attacked by Coco while Natsu and Happy fight Sugarboy. Elsewhere, Lucy and Michelle are found by Mary Hughes who uses her Command Magic to control Michelle. She then forces Michelle to walk towards a cliff. Lucy grabs her arm and tries to yank her back but the two are unable to override Mary Hughes's Magic and falls. As they fall, Lucy summons Aries who uses her Wool Magic to soften their fall. She then summons Taurus and begins to fight Mary Hughes. However, Mary Hughes overpowers Lucy and uses her Magic on her, forcing her to give her her father's memento, the clock hand. With the item obtained, Mary Hughes throws a signal, telling her comrades that they had completed their mission.

Aftermath
The next day, the Fairy Tail Mages decide to investigate about the clock and Natsu, Lucy, Erza, Gray, Happy, Wendy, Carla and Michelle go to Heartfilia Konzern. Erza divides the group into groups of two and the four groups begin a thorough search of the mansion, looking for anything that might give them some clue. At the library, Lucy and Michelle find a blank book entitled "To My Daughter" and Crux suggests that it may be an anagram. The two then calls the rest of the group and begins to try and figure out the true meanings behind the words. The group later manages to form the words "Duo Great Myth" and Lucy realizes that it refers to the Two Great Myths, two books that tells a prophecy about chaos descending upon the world.