The reason a one person fight feels hollow isn`t just because it's one person. The eyes of the audience hurt. Misaki, who was injured in the auditorium, spends the night at the hospital and quickly closes the distance with Akira, who accompanies him. Rina was forced to change the concert venue due to a secret agreement between Itsuki Kanzaki, the representative of MM Music, who has "Sakuradan", and Eiji Ogata. In response to Eiji's tyranny, Rina offers an exchange condition. That was to hire Touya again as Rina's exclusive staff. Yuki entrusts Yayoi with her letter to Touya as a "kejime" for the concert. Touya, who visits Echoes with Rina, calls out to Misaki, but is coldly thrown away by Akira, who was with her. Inspired by her conversation with Touya, Rina comes up with a bold plan for her Christmas Eve concert...