Before Kingdom Hearts Union χ
Like the rest of the Dandelions, Elrena is sent to the new plane - "Unchained" - before the Keyblade War, surviving the conflict and forgetting about the world she was leaving.
Then, Elrena began to relive her past experiences in given versions of worlds with the rest of the Dandelions, while having the Keyblade War erased from her memories. Thanks to this, a double of Elrena - constituted from the recorded data of what she saw again in the virtual versions of the worlds - was created.
One day, while she is sitting alone in one of the streets of the Daybreak Town, Elrena is approached by Lauriam, who asks her if she is Elrena. After she confirms her identity, Lauriam asks her what she knows about Strelitzia. Elrena confirms that she knew Strelitzia, but only in having gone on missions with her. She claims Strelitzia was quiet and seemed to always be waiting for someone, so she didn't disturb her. Elrena summoned her Chirithy, who added that he and Strelitzia's Chirithy saw her go into a building with Skuld.
Once Lauriam departed, Elrena entered the building in question to investigate. Her Chirithy noted this was unusual behavior for Elrena, as she never cared much about other people.
Elrena later reappeared, with her Chirithy claiming to have seen Strelitzia walking with a man in a black coat. Elrena accompanied the union leaders back to the lifeboats. At first, Elrena insisted she should not take one of the pods. However, after Lauriam's asked for her help to continue the search for his sister, she accepted and departed the data world alongside Lauriam, Brian and Ventus.
Once in the real world, Elrena was convinced to take one of the real lifeboats to escape the crumbling Daybreak Town. Elrena, Lauriam and Ventus were sent away just as they heard a loud noise and crying out in concern for Brain, who was still there for the time being.
After escaping in the lifeboat, Elrena is shown unconcious atop a cliff in a thunderstorm in Enchanted Dominion.
After Kingdom Hearts Union χ
At some point, Elrena's heart fell to the darkness, becoming a Heartless. Elrena's Nobody, Larxene, came into being, where she was found by Xigbar and brought before Xemnas, who was looking for ancient Keyblade wielders to fill slots in Organization XIII. After Larxene's defeat at the hands of Sora, Elrena is recompleted, but became a Nobody once more, joining the Real Organization XIII. She unsuccessfully tried to stage another coup with Marluxia, and during the conversation was interrupted by Demyx, Xemnas and Luxord. Xemnas asked the four organization members if they knew why he recruited them in the first place when they had no prior obvious connection to Ansem the Wise. Larxene guessed that it was to use them for the power of their hearts. Xemnas corrected her, claiming she, Marluxia, Demyx and Luxord would soon reveal a secret about the ancient Keyblade legacy that slumbered within them, to which Larxene reacted with shock.
- Kingdom Hearts III Ultimania
- Kingdom Hearts III