The twin children of the Blue Blur twins. Salvia is more of her father's side while Sync is at the mother's side :3

Scenario 1
Ooookay... So you were utterly clueless on how a pair of hedgehog twins give birth to... A perfect pair of hedgehog twins. Yep. No weird mutation, disease, medical condition whatsoever. You only know that these two are like their parents in some ways.

Saphie then left you to babysit them and went with Sonic To visit the Gaia Temple. Salvia and Sync then stared at you curiously.

"Nee-chan/Nii-san, do you have a boyfriend or girlfriend?"

Scenario 2
Rainy dark clouds overcasted the dreary sky one miserable afternoon. You were attending the funeral of the legendary blue heroes, who passed away together when they sacrifice their lives to save Möbius from an unknown race of dark creatures that killed all of Saphira's kind. A tombstone was placed in honor for Sonic with an inscription carved on it, saying "Here lies the blue hero. May his soul wander into the glorious skies of where his true love lives to this day." On top of it was a small stone casket of which Saphira's sapphire birth stone shards are sealed within. The top was also carved, saying "Here is the heart of the former princess, who is the last of her kind."

They left only their twin children, who held each other and cried together, trying to grasp the reality of which they have to face.

Once the rites of passage were over,you were about to head home until a pink hand grasp your shoulder.

"(Y/N), the twins needed a new home."