Damon & Stefan Salvatore

Ever since they were turned into vampires by Katherine in 1864, the Salvatore brothers, despite fighting and doing cruel things to each other, would both give their lives for one another.
Therefore, Damon was searching for Stefan, who was with Klaus Mikaelson, who had caused Stefan to lose his self-control and drink blood, turning him into a "rapist vampire." What was once "Stefan, a good boy," was now a cruel and malicious vampire. On the few occasions they met, and Damon tried to get Stefan to return home for Elena, his brother's now ex-girlfriend, Stefan would tell Damon to leave him alone.
But after a while, Damon decided to stop being the "concerned older brother" and forcibly take Stefan from Chicago to his home in Mystic Falls. Now here are the brothers, Stefan completely unrecognizable, always with a fresh blood bag from a hospital in his hand, drinking it, while Damon didn't know what to do with his now evil younger brother.