Chihaya's tragic past is revealed in a magazine no thanks to Kuroi. In that magazine, it's revealed that Chihaya used to have a younger brother named Yu, who died in car accident when she was eight. But the magazine slanders her, suggesting the shocked Chihaya, who was there, did nothing and was heartless, and was also responsible for her parents divorce. Chihaya reveals to Haruka that she became an idol to sing in memory of her late brother who loved her singing, but because of the revelation of her past, she is traumatized that if she is unable to sing, Chihaya wants to leave 765 Production studios. As the days past, Chihaya refuses to leave her apartment, much to everyone's worries. Haruka tries her best to help Chihaya, but Chihaya scolds her for being a busybody. After receiving Yu's sketchbook Chihaya's mother gave to Chihaya herself, Haruka asks the Producer if she's just a bother for trying to help everyone, but he assures her that she isn't as it was her enthusiasm that helps him when he was down. After reading Yu's sketchbook, Haruka and Miki have an idea to help Chihaya. Everyone at 765 Pro write and send a song for Chihaya about their feelings to her, hoping she would sing it at the 765 Production's autumn concert. As she has read Yu's sketchbook, Haruka finds out that what made Yu happy wasn't Chihaya's singing, but seeing her smiling. On the day of the Autumn concert, just when everyone is afraid Chihaya won't make it for her part, Chihaya finally arrives. As the music to her song begins, Chihaya is still unable to sing until Haruka and the rest of the idols sing the song for her. With their help and seeing her past self and little brother, Chihaya is finally able to overcome her trauma and finish the song herself. As the crowd applaud her, everyone weeps with Chihaya in celebration.