Joyce Harris was the first daughter of Dawn and Xander.[1]
Biography
Early life
Joyce was born in the quiet year between the crisis of the Supernatural Crisis Act and the Reckoning, and had her name as a homage to her late grandmother Joyce Summers. She lived with her parents in their house in San Francisco, and had Mister Gordo and a Vampy Cat plush toys.[1]
Her mother had prohibited Joyce's aunt Buffy to wear the mʔ weapon around the baby, which the Slayer apparently did frequently.[1]
Despite their fear of leaving Joyce an orphan, her parents were both present during the battle of the Reckoning. While Dawn had to go the Willow's empowerment center to open the portal that expelled a demon army from the Earth to a Hell dimension, Xander couldn't leave her alone to face such danger. They left Joyce under her grandmother Jessica's care,[2] and were able to both return home after the battle.[3]
Possible future

The oldest child, Joyce eventually had a brother and a sister, and studied magic,[4] although this was only known by Harmony Kendall in the original timeline before the actual Reckoning.[3]
Appearances
Buffy the Vampire Slayer: Season 12 | |||||||||||
One Year Later Appears |
Future Shock Flashback |
The Reckoning Mention |
Finale Appears |