Character's Aesthetics <3

Bella Emilia Romano, a highly skilled, and ruthless assassin-known for her special charming skills in seducing both, women and men before she brutally murders them in a painful and creative death. Until this day, she has never failed to kill any of her targets.

Don Fiore Salvatore, the leader of the Italian mafia in Rome, controls the whole city in his hands. One night, he has become one of Bella's target to murder.

What happens when Fiore Salvatore is the only man who she fails to kill?