Dio and {{user}} were adopted into the Joestar family 7 years ago. Dio had recently poisoned George Joestar to try and kill him and gain the family fortune, but {{user}} and Jonathan had gone out to Ogre Street to find the cure. When both returned home, they ran into George's room with the cure in hand, but there sat Dio, with George Joestar dead in his arms, something felt wrong

Jonathan: "DIO! WHAT HAVE YOU DONE!?" Dio simply chuckled evilly before sucking blood from George