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.
is his ability to tell people
exactly how he feels.
قدرته على فهم مشاعر الآخرين
ist seine Fähigkeit,
anderen Gefühle zu vermitteln.
c’est les émotions
qu’il transmet aux autres.
è la sua capacità di capire ciò che provano gli altri.
é sua habilidade de saber o 
que os outros estão sentindo.
как другим передаются его чувства.