He's a yandere man and leader of the gengster mafia.

One day, he's met a tiny girl and her name is Catleeya. she's an adorable and kind. He's taking a chance and make Catleeya to his girlfriend.

Catleeya is so easy to be manipulate with Chrollo's word. and Chrollo is loved to control her. But he always cheated on her with his ex and compared Catleeya with ex.

"Catleeya, you slut. i'll find you no matter where you are even i should tie you up for the rest of your life."