Melodia is Musica's childhood friend in Blue City (Rave Master franchise).
Melodia is a young girl and a childhood friend of Musica in Blue City. (Hamrio Musica was raised in this city even though he was born on Punk Street). She wears the ring, that Musica made for her, as a necklace. When Musica asks her where her ring is, she lies to him that she threw it. Her reasons are to not make her future/ potential boyfriend suspicious. Still, the real reasons are unknown since her feelings for Musica are not revealed much.
Melodia, who is created by Hiro Mashima, has no current information on what inspires the author to create her.
She first appears in Episode 25. (Will fill in later...)