Take JoJo's Bizarre Adventues: Diamond is Unbreakable, make Koichi the main character, turn his stand Echoes into a ghost pharaoh, make Yukako obsess over Echoes instead of Koichi, give Josuke blonde hair, don't change anything about Okuyasu, & combine traits of Dio, Kira, & Rohan into the antagonists. End series on epic bromance moment. Make future series focus on card games instead of stand battles.
Take JoJo's Bizarre Adventues: Diamond is Unbreakable, make Koichi the main character, turn his stand Echoes into a ghost pharaoh, make Yukako obsess over Echoes instead of Koichi, give Josuke blonde hair, don't change anything about Okuyasu, & combine traits of Dio, Kira, & Rohan into the antagonists. End series on epic bromance moment. Make future series focus on card games instead of stand battles.