Banana Fish and Jojo's Bizarre Adventure: Golden Wind are both 2018 adaptations of manga franchises that started in the 1980's. The main character in both anime are the child/in custody of the main villain in each series. The main character in both series hates something to do with drugs. Giorno in Golden Wind hates gangsters who sell drugs to children, while Ash hates Banana Fish, the drug that made his brother crazy. In both series the main character is a blond male teenager who wants to kill the boss of the gang and they were both abused as children. Both anime can also sometimes be violent.