Tensei Kizoku No Isekai

I spent five years by Casey Fusco's side, turning him from a beggar in the slums to a mafia Don. On the second day he put on the family ring, his first love came knocking on our door with an ultrasound report. Casey pushed the divorce papers toward me with a sorry look on his face. "She's pregnant. I have to give her the position of Donna." My brethren tried to talk me out of doing something foolish, since I had nearly lost my life while trying to help him climb up the ranks. But contrary to their expectations, all I did was sign the papers calmly without making a fuss. "Congratulations on having your wish come true, Don Fusco."