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.
The power that espers should 
be extremely cautious about...
القوّة التي ينبغي للمُدركين فوق حسّيين
...أن يتوخّوا حذراً شديداً حيالها
vor der Menschen mit Superkräften sich
besonders in Acht nehmen müssen.
une aptitude que les personnes
dotées de pouvoir doivent craindre.
Una capacità che ogni psichico
dovrebbe assolutamente temere...
É um poder contra o qual paranormais 
deviam ter muita cautela...
есть сила, которой экстрасенсы
должны остерегаться больше всего.