Mob gets trapped inside a parallel world created by Mogami Keiji. Minori ends up transferring to his class, and Mob becomes the target of bullying. He can't ask anyone for help, and his negative emotions start to build inside. The truth behind the tragedy that Mogami went through when he was alive comes to light. Meanwhile, Reigen and the others were waiting for Mob to regain consciousness back at the Asagiri mansion. Dimple attempts to save Mob by infiltrating Minori's body.
Just as happiness shines
in the shadows of sorrow,
،مثلما توجد سعادةٌ بسببِ وجود حزن
So, wie es Freude nur durch Trauer gibt,
La felicidad existe
en contraposición a la tristeza
La felicidad existe
en contraposición a la tristeza
Tout comme la tristesse
va de pair avec la joie,
Proprio come la felicità esiste in risposta alla tristezza,
Da mesma forma que, como 
há tristeza, há felicidade,
Если есть грусть, то есть и радость.