Three years ago, Serizawa was troubled with about his psychic powers. One day, he was visited by the boss, Suzuki Toichiro. Serizawa ends up trusting him since he's the first person to understand what he's going through. But Mob then brings up the fact that Serizawa is being used and tells him, "I'll be your friend." Hearing Mob say that, Serizawa... 

Meanwhile, after defeating Sho, the boss starts gathering up the energy he was sharing with his followers and turns into an energy monster.
Now I'm going to have to recruit more 
soldiers because of you and your friends.
والآن سأضطرّ لضمّ المزيد من الجنود 
بسببِك وسبب أصدقائك
Nur euretwegen muss ich mich
wieder um neue Soldaten bemühen.
Por su culpa tendré que buscar
nuevos combatientes.
Por vuestra culpa tendré que buscar
nuevos combatientes.
À cause de vous tous,
Ora, per colpa tua e dei tuoi amici, 
dovrò andare a reclutare altri soldati.
Agora eu vou ter que recrutar mais 
soldados graças a você e seus amigos.
По вашей вине