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.
it appeared as though this world 
could fit in the palm of my hand.
شعرتُ وكأنّ هذا العالم يمكنه أن يتّسع 
في كفِّ يدي
sah ich diese Welt
praktisch in meiner Hand.
vi el mundo del tamaño de mi mano.
vi el mundo del tamaño de mi mano.
j’ai vu le monde
dans la paume de ma main.
ho sentito come se potessi stringere questo mondo 
nel palmo della mia mano.
me pareceu que esse mundo poderia 
caber na palma da minha mão.
мир показался мне
размером с ладонь.