According to this pic; Sonic, Tails and Knuckles (Team Sonic) went on a mission to fight against Dr. Eggman. Amy, Cosmo and Tikal (Team Girlfriend) stayed taking care of the Master Emerald; Soon Shade, Cream and Cheese arrived and decided to help them to take care of the emerald.
Tikal sprites belong to earthbouds (deviant art)
Shade sprites belong to rudolphtheehcidna (deviant art)