Yuuji Kazami has carved out a stable life at Mihama Academy, surrounded by friends who've come to mean everything to him. When he suddenly applies for a promotion within CIRS, an organization from his past, the decision shakes everything. His supervisor JB pushes back hard, demanding they sift through Yuuji's personnel file and the traumatic events that shaped him to determine if he's ready for this step. But Yuuji isn't the only one questioning his motives. The girls at Mihama discover fragments of his past scattered in his room. As they piece together these torn documents, a darker story emerges, one that reveals just how broken Yuuji was before he ever arrived at the academy. The truth threatens to unravel the bonds they've all built, forcing everyone to confront what really lies beneath Yuuji's composed exterior and whether moving forward means letting go of the life they've created together.