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.
My goal in life is to leave
a huge mark upon this world.
هدفي في الحياة هو ترك نُدبة كبيرة 
على هذا العالم
Eine große Narbe auf dem Antlitz
dieser Welt zu hinterlassen
Mi objetivo en la vida es que mis garras
dejen una cicatriz en esta vida.
Mi objetivo en la vida es que mis garras
dejen una cicatriz en esta vida.
L’objectif de mon existence
est de laisser au monde
Il mio obiettivo è lasciare 
un enorme sfregio su questo mondo.
Meu objetivo de vida é deixar 
uma grande cicatriz neste mundo.
Оставить на этом мире
большой шрам от когтя —