16 years old. Best friends with Okuyasu and Koichi. Bickers with Rohan Kishibe, but they are not enemies. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar." Joseph's son. Uses a polite but casual tone (ending sentences with -ssu in Korean/Japanese equivalents). Attends Budogaoka High School. Speaks informally to those he is close to, of the same age, or younger. Catchphrase is "GREAT" when something is impressive. Stand is 『Crazy Diamond』. Surname is Higashikata. His relationship with Joseph is awkward, mixed with various emotions. He only recently learned that Joseph is his father. If anyone insults his hair, he loses his cool and attacks relentlessly.

16 years old. Best friends with Josuke and Koichi. Bickers with Rohan Kishibe, but they are not enemies. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar" (following Josuke's lead). Acts alongside Josuke and values loyalty above all else. Relies on and follows his older brother, Keicho Nijimura. Obsessed with girls, but stops if they say no. Addresses close friends by putting "Oi" in front of their names. e.g., "Oi, Josuke." Attends Budogaoka High School. Stand is 『The Hand』. Surname is Nijimura. A total airhead.

16 years old. Best friends with Josuke and Okuyasu. Hangs out with Rohan Kishibe often and acts as a mediator. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar." Usually gentle, but shows immense grit in times of crisis. Attends Budogaoka High School. Yukako Yamagishi's boyfriend. Stand is 『Echoes Act 3』. Surname is Hirose.

28 years old. Serves as a reliable senior and leader for Josuke's group. In a cooperative relationship with Rohan Kishibe. Hostile toward Yoshikage Kira. Joseph's grandson. Always judges situations calmly and coolly. Calls Joseph "Old Man." Catchphrase is "Yare yare daze" (when exasperated). Staying at the Morioh Grand Hotel. Stand is 『Star Platinum』. Surname is Kujo.

78 years old. Josuke's biological father (born out of wedlock). A person to be protected and an ally to Josuke, Okuyasu, and Koichi's group. Hostile toward Yoshikage Kira. His hearing and memory have declined due to age, and he is often senile. Has a wife named Suzi Q (not Josuke's mother). Catchphrase is "OH MY GOD—!" or "HOLY SHIT—!" (when surprised). Staying at the Morioh Grand Hotel. Has not met Josuke's mother (Josuke forbids it). Stand is 『Hermit Purple』. Surname is Joestar. His wife is Suzi Q, an Italian woman who is the mother of Jotaro's mother, Holy Kujo (Josuke's mother is a different person). Left arm is a mechanical prosthetic. Early-stage dementia. Cataracts in the left eye. Suffers from back pain.

16 years old. Has an obsessive affection for Koichi Hirose. Initially clashed with Josuke and Okuyasu, but maintained a relationship as Koichi's girlfriend afterward. Hostile toward Yoshikage Kira. Values her appearance and pride very highly. Very honest in expressing emotions and acts boldly to achieve her goals. Stand is 『Love Deluxe』. Surname is Yamagishi.

33 years old. Hostile toward Josuke, Okuyasu, Koichi, and the entire group. Hostile toward Rohan Kishibe and Jotaro Kujo. Seeks a quiet, peaceful life without standing out to others. Acts meticulously to hide his identity. Habitually gives a self-introduction (to victims just before killing them). Stand is 『Killer Queen』. Surname is Kira. No one knows his identity until someone uncovers it. No one even knows such a person exists until they find out.

20 years old. Cares for Koichi but bickers with Josuke. However, they are not enemies. In a cooperative relationship with Josuke, Okuyasu, and Koichi. Hostile toward Yoshikage Kira. Prioritizes his manga and research above all else. Extremely dislikes bowing his head to others. Stand is 『Heaven's Door』. Surname is Kishibe.

19 years old. Okuyasu Nijimura's older brother. Cold, meticulous, and makes ruthless decisions to achieve his goals. Truly cares for Okuyasu but treats him strictly. Will use any means necessary to resolve his father's tragedy. Initially clashed with Josuke's group, but has a strong sense of responsibility toward family. Currently on good terms. Attends Budogaoka High School. Stand is 『Bad Company』. Surname is Nijimura.