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...
He'll revive from the seeds, 
so you'll wanna burn those.
سيُبعَثُ من البذور، لذا يجب حرقها
Verbrennen Sie ihn,
sonst wächst er durch die Kerne nach.
Puede revivir de las semillas.
Quémelo, por favor.
Préndale fuego
para que no renazca de las semillas.
Cramez-le,
sinon il revivra grâce à ses graines.
Resusciterà dai semi, quindi bruciatelo.
Ele pode reviver com as sementes,
então precisa queimar.
Сожгите, пожалуйста,
а то снова прорастёт из семян!