Nerida Yuki is Jaden Yuki and Aqua's late mother, Jeffrey's mother-in-law, and Xion, Bruce and Lily's grandma.
Nerida was a powerful Keyblade Master who gave birth to a daughter named Aqua. After receiving a vision of Aqua's future, Nerida left her in the care of another Keyblade Master she knew, Eraqus. Then she traveled to a new world where she eventually met and married Jaden Yuki's father. During her stay, she became a skilled duelist and decided to retire from being a Keyblade wielder. Soon, Nerida gave birth to Jaden. While she loved him so much, she didn't always have time for him because she was busily planning on telling her son of her past and teach him the ways of the Keyblade. But Nerida became ill and sadly passed away. Her legacy as a Keyblade Master and a duelist would live on through both Aqua and Jaden Yuki.
- Her daughter Aqua and son Jaden
- Her grandchildren Xion, Lily and Bruce
- Her extended family
- Duel Monsters
- Spending time with her family
- Having not been there for Aqua and Jaden
- Her family and friends being threatened
- The Darkness
- Nerida is first mentioned in The Tale of Nerida.
- Nerida will appear in Jeffrey, Jaden, Hiccup & Friends meet Coco.
- Nerida uses a old fashioned Battle City Duel Disk and wears a Keyblade Armor similar to Aqua's Keyblade Armor. She uses a water themed deck.
- Nerida wields the Brightcrest Keyblade.
- Nerida currently lives at Jeffrey, Jaden and Hiccup's Estate.
- In Kingdom Hearts III, Nerida will participate in the final battle against Xehanort. It's revealed that she was friends with him and Eraqus until Xehanort went down his dark path.
- In Jeffrey, Jaden, Hiccup & Friends' Storm Adventures of Avengers: Endgame, even though she wasn't a victim of Decimation, Nerida is revived by the Hulk after he reverses the Decimation.
- Nerida is skilled at being an therapist.