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.
Still, you sure have some nerve 
to lecture me when you're so weak.
مع ذلك، من الجرأة أن تعظني وأنت 
بهذا الوهن الشّديد
Und mit so wenig Kraft
willst du mich belehren?
¿Y así pretendías darme una lección?
¿Y tú pretendías aleccionarme?
Tu essayais de me faire la morale
avec ton petit niveau ?
Certo che hai avuto del gran fegato a farmi la predica 
pur essendo un tale smidollato.
Mesmo assim, você tem coragem de me 
dar sermão, mesmo sendo tão fraco.
Но всё же... Такой бездарь
читал мне нравоучения?