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.
You can see that they aren't much help.
من الواضح أنّهم ليسوا نافعين كثيراً
¿No entiendes
que no te servirán de nada?
¿No entiendes
que no te servirán de nada?
T’as bien compris
qu’ils valaient pas grand-chose…
Non puoi non esserti accorto
che non sono di grande aiuto.
Você pode ver que eles não ajudam muito.
На этот раз ты понял,
что солдаты из них никудышные?