When Dante was a child he was forced to witness his younger brother get beaten because he was a vampire and not a demon. Eventualy they threw him out of the house and he never saw him again. Dante's family was extremely rich (for reasons that i will keep for my own) and had him train with his demon powers every day. You would expect Dante to become a rude snotty rich boy....but instead he became a tough guy you would never expect to even have barely any money. When his father and mother died of a terrible disease he took over their family fortune and spent most of it on an extreme training room. He spent the rest of it on food and supplies for his "danger" room. After many years of training Dante became a hitman for the hellsing corp and has earned the nick name white fire.