Amy's Story mostly revolve around her vow to protect the bird from the clutches of ZERO THE CHASE MASTER
embedded on her locket is a chaos emerald that Eggman eventually gets later but inside the locket is a family photo of 3 Flickies, the later 2 flickies we're captured and used to power the E-series robots: Gamma and Beta
near the end of Amy's Story the flickies are reunited at last (… and then also never seen again because sonic's week continuity)