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.
You said you didn't want to hurt anyone.
قلتَ أنّك لم ترد أن تؤذي أحداً
Du hast doch gesagt,
dass du niemandem wehtun willst.
Dijiste que no querías lastimarme.
Dijiste que no querías hacerme daño.
Tu as dit
que tu voulais pas me blesser.
Hai detto di non voler fare del male a nessuno.
Você disse que não 
queria machucar ninguém.
Ты говорил, что не хочешь
причинять боль.