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...
These guys had plenty already, 
so why'd they want even more?
،حصلَ هؤلاء على ما يكفي سلفاً
فلماذا يريدون المزيد؟
Denen geht’s doch schon gut genug.
Warum wollten sie noch ein besseres Leben?
Estos llevaban una vida bastante buena.
Estos vivían de puta madre,
¿por qué no se conformaron?
Ils ont tout ce qu’ils veulent,
Questi qua avevano già così tanto,
Esses caras já tinham tanto,
por que queriam ainda mais?
Они ж и так жили
вполне себе в достатке…