Guardians Of Allegro is a Story owned by PrincessMikuHatsune 


  • Melody Ongaku/Guardian Harmony  : Melody is the Main Character of the story also the Princess Of The Allegro Empire plus Guardian Harmony , Hero Of Justice
  • Riko Kagamine : Riko is son of Len Kagamine also Best Friend Of Princess Melody , he is the only person who knows Melody is Guardian Harmony
  • Zuko Ongaku : Melody's Father who is no longer alive
  • Mizuki Ongaku : Daughter Of Miku Hatsune and mother of Melody

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