Childhood Promise (Uta no Prince-sama Fanfiction)

A new idol enters the Master Course to collab with STARISH. Shes very cheerful but it seems as if shes hiding something dark. Oh, and did I mention she was Syos' childhood friend. Follow STARISH and of course Haruka as they go through another journey in their careers with Quartet Night tagging along, with a secret that two people have been hiding behind their backs.