Denji is a teenager who lives his life as a Devil Hunter.

Aiming to pay off the debt he inherited from his father, he starts hunting devils for the yakuza with his buddy Pochita, a "Chainsaw Devil", while living a tragically poor life.

Just when things seem like they couldn't get any worse, Denji gets betrayed and killed by the yakuza. As Denji starts passing out, he hears someone calling from inside his head...
I guess we all dream 
about stuff like that, huh?
أعتقد جميعنا نحلم بأمور كهذه، صحيح؟
Ach so. Letzten Endes
hegen alle irgendwelche Träume.
Ya veo. Todos soñamos con algo más.
Claro, cada cual tiene
sus propios sueños.
C’est comme ça,
tout le monde a besoin de rêver.
Capisco. Tutti hanno dei sogni.
Entendi. Todos têm sonhos, afinal.
Ну ясно!
Похоже, всем людям свойственно мечтать.