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.
not being able to make friends
because people find your powers creepy.
عدم القدرة على تشكيل أصدقاء لأنّ الناس
يخشون من قواك المُريبة
Wirst wegen deiner Kräfte verachtet
und findest keine Freunde …
No puedes hacer amigos
porque repudian tus poderes.
No puedes hacer amigos
porque repudian tus poderes.
Tu ne peux pas te faire d’ami
vu que tu fais peur…
Non poter fare amicizia con nessuno
perché tutti hanno paura di te.
Não conseguir fazer amigos porque as
pessoas acham seus poderes desagradáveis.
Тебя ненавидели за сверхсилы
и никто с тобой не дружил...