[Machine Translation] Believing Rin's words, "We will definitely participate in the festival," Hatono and the others continue to practice for their performance. Behind the scenes, Rin seems to be working behind the scenes this time as well... Will "Heartbreak" be in full swing? The curtain rises on a tumultuous cultural festival! This is the fourth volume of the drama of the struggle for youth and music in a very life-size way!