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.
B-But I get dizzy whenever I leave my room.
...لكن أشعر بدُوار كلّما غادرتُ غرفتي
Aber mir wird schwindlig,
wenn ich mein Zimmer verlasse.
Pero si salgo de mi habitación,
me mareo.
Pero si salgo de mi habitación,
me mareo.
Mais je me sens pas bien
quand je sors de ma chambre…
Ma quando esco dalla mia stanza
mi vengono le vertigini...
Mas eu fico tonto sempre 
que saio do meu quarto...
Но у меня голова кружится,
когда выхожу из комнаты...