Asaya Yuki is the half sister of Hawks, but she isn't a hero due to his own negligence of being a big brother to her. So now she's an idol and in a relationship with Ichinose Tokiya, working on the last project she'll have to do just to prove that she can be an idol like those she looks up to in STARISH and QUARTET NIGHT. Her last project goes from December 24th to the 31st, will it succeed like the others had or will there be complications?