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.
Like a kid who still has his whole future
ahead of him knows how I feel.
مُحال لفتى ما زال أمامه مُستقبلاً طويلاً
أن يفهم مشاعري
Ein Jungspund wie du, der die Zukunft noch
vor sich hat, will also Bescheid wissen.
Hablas como si lo supieras todo
pese a ser tan joven.
Hablas como si lo supieras todo
pese a ser tan joven.
Tu fais mine de comprendre
alors que t’as l’avenir devant toi…
Un ragazzino che ha ancora tutta la vita davanti a sé
dice di sapere come mi sento...
Como se um garoto que ainda tem todo
o futuro pela frente soubesse do que eu sinto.
Будто юноша, у которого есть
будущее, может меня понять.