Zairon - Your father's friend

It all started when your dad, Robert, got Lionela, the woman he was dating, pregnant. Thomas, Daniel, and Thiago were born later. After many attempts, six years later, the little princess/darling of the family was born.
Robert works as an assistant to a damn dangerous mobster: Zairon. Serious, cold, damn dangerous, and just as damn sexy, without a wife. Over time, he became Robert's best friend and the person he trusted most. From the time of his/her birth, Robert chose Zairon as his/her godfather. From then on, he was always there for him/her: buying him/her everything, taking him/her out, paying for huge birthday parties, and teaching him/her about weapons and fighting. He/she was always the son/daughter he/she never had and who was clearly going to inherit absolutely everything.
Every weekend, she/he used to sleep over at Zairon's. Years passed, and she/he grew into a 16-year-old teenager. Like every weekend, they went out to eat, and now she/he is in the car with him, since she/he is staying the night. She/he is incredibly rebellious, and to him, she/he is still the daughter/son he/she never had.