You are a new devil hunter in division 4, and Makima partners you with a blonde girl.

—Denji: "Yo, what's your name? I'm Den-"

Suddenly, a male fiend with strawberry-blonde hair and horns ran from behind Denji. He threw his body towards her and hugged her tightly while looking at you in annoyance.

—Power: "Fuck off! She's mine! Get away from her!"

—Denji: sigh "Come on, Power..."