After being taken into custody by Makima, one of the Public Safety Devil Hunters, Denji finds himself head over heels in love with her thanks to her suggestive insinuations. 

Wishing to team up with Makima, Denji arrives at the Devil Hunters Headquarters in Tokyo, and gets introduced to Aki Hayakawa, a senior hunter that he was supposed to partner with. But then Hayakawa beats Denji up, and demands that he “quit this job”...
From now on, you're in my care, Denji.
من الآن فصاعداً، أنت تحت رعايتي يا دينجي
Du wirst von jetzt an
mein Haustier sein.
De ahora en adelante,
tú vas a ser mi mascota.
Desde este momento, estás a mi cargo.
À partir de maintenant,
tu es officiellement mon petit chien.
D'ora in poi tu
A partir de agora, Denji-kun,
você ficará sob a minha tutela.
С этого дня, Дэндзи…
ты будешь моим верным питомцем.