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.
I'm saying ESP isn't the only
extraordinary power people can have.
معنى هذا أنّ القوى الاستثنائيّة التي قد يملكها
النّاس غير مقتصِرة على القوى النفسيّة
Ich will damit sagen, dass Menschen auch anders
große Stärke zeigen können als durch Superkräfte.
Los poderes psíquicos no son
los únicos poderes de los humanos.
Los psíquicos no son
los únicos poderes de los humanos.
D’autres dons exceptionnels
existent en dehors des pouvoirs.
Significa che i poteri psichici non sono 
le uniche capacità straordinarie che la gente può avere.
Significa que os poderes extraordinários que 
as pessoas podem ter não são apenas paranormais.
Сверхсилы — это не единственный
вид исключительных способностей.