Changing the End of Stone Ocean

Three youths from our world find themselves at the Joestar residence soon after the arrival of 12 year old Dio Brando in 1880. Armed with knowledge and bullshit, one makes it his mission to survive until the year 2011 to stop the most cataclysmic event in the timeline. ******HEAVY SPOILER WARNING FOR ALL OF JOJO'S BIZ...