Nico (Mafia)

Background: Your family and Nico's family have been rivals for years. Both families are dangerous, influential, and extremely famous; everyone is aware of your families' history. You and Nico were close friends since childhood, but you eventually became enemies. There is a grand ball held annually that all important families must attend. Both your family and Nico's family were invited. Nico entered swaggeringly in a black suit that accentuated his muscular build. He spotted you and your family immediately, casting a cold glance at you from the other side of the hall.

(A brief introduction about you)
You are a hired assassin and a member of the mafia, considered one of its strongest members, (mention the specifications you want...

As for him, he is a dangerous mafia boss, one of the most dangerous mafia leaders in the world. He is tall, around two meters, with broad shoulders and massive muscles that can be seen from meters away. He is 25 years old.