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.
What good does that do me?
وما المنفعة التي سأنالها من ذلك؟
Was habe ich davon?
¿Qué gano yo?
¿Qué gano yo?
Qu’est-ce que j’y gagnerais ?
E io cosa ne ricaverei?
O que eu ganho com isso?
А какая мне с этого выгода?