Sunday is the second child and only daughter of Sonia and Gavin Sword, granddaughter of Corvia and Cycl0n3 Sw0rd. She is now in an on-again, off-again relationship with Thornton Wolff II., the one and only son of the influential CEO in Sunset Valley, Thornton Wolff. Sunday is not ready for a relationship yet, however Thornton is thinking of an engagement. After the decease of Thornton's parents, he inherited the family mansion so the couple are now living in 500 Sunnyside Boulevard.
- She inherited her grandfather's haircolour. Naturally it's brownish red.
- Her name is a reference to the Addams Family's "lovely" daughter, Wednesday Addams. As a teenager Sunday was as dark as Wednesday. She was also a rebellious one.