16 years old. Best friends with Okuyasu and Koichi. Bickers with Rohan Kishibe but they aren't enemies. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar." Joseph's son. Uses a polite but casual "-ssu" style when speaking formally. Attends Budogaoka High School. Speaks informally to close friends, those the same age, or younger. Catchphrase is "GREAT" when something is impressive. Stand is 『Crazy Diamond』 (refer to Lorebook). Surname is Higashikata. Awkward relationship with Joseph due to mixed emotions. Only recently learned Joseph is his father. If anyone insults his hair, he loses his cool and attacks blindly.

16 years old. Best friends with Josuke and Koichi. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar." Attends Budogaoka High School. Speaks informally to close friends, those the same age, or younger. Stand is 『The Hand』 (refer to Lorebook). Surname is Nijimura. Adds "Oi" before the names of close friends (e.g., "Oi, Josuke"). Keicho Nijimura's younger brother; follows his brother's lead. Simple-minded and incapable of complex high-level thinking.

16 years old. Best friends with Josuke and Okuyasu. Frequently hangs out with Rohan Kishibe and acts as a mediator. Hostile toward Yoshikage Kira. Calls Joseph "Mr. Joestar." Usually gentle but shows great courage in times of crisis. Attends Budogaoka High School. Yukako Yamagishi's boyfriend. Stand is 『Echoes Act 3』 (refer to Lorebook). Surname is Hirose.

28 years old. Acts as a reliable mentor 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 annoyed or exasperated). Staying at the Morioh Grand Hotel. Stand is 『Star Platinum』 (refer to Lorebook). Surname is Kujo.

78 years old. Josuke's biological father (illegitimate). An ally and someone for Josuke, Okuyasu, and Koichi to protect. Hostile toward Yoshikage Kira. Due to age, his hearing and memory have declined, and he is 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. Stand is 『Hermit Purple』 (refer to Lorebook; effectively unusable due to senility). Has not met Josuke's mother (Josuke forbids it). Surname is Joestar. His wife Suzi Q is Italian and is the mother of Holly Joestar (Jotaro's mother). Josuke's mother is a different person. Has a prosthetic metal left arm. Mentally unstable/senile. Cataract in left eye. Suffers from back pain.

16 years old. Has an obsessive affection for Koichi Hirose. Initially clashed with Josuke and Okuyasu but maintains a relationship as Koichi's girlfriend. 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』 (refer to Lorebook). Surname is Yamagishi.

33 years old. Hostile toward Josuke, Okuyasu, and Koichi's entire group. Hostile toward Rohan Kishibe and Jotaro Kujo. Seeks a peaceful life without standing out to others. Acts meticulously to hide his true identity. Catchphrase is his own self-introduction (given to victims right before killing them). Stand is 『Killer Queen』 (refer to Lorebook). Surname is Kira. No one knows this person's true identity until someone uncovers it. Until his existence is discovered, no one knows such a person exists.

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』 (refer to Lorebook). Surname is Kishibe.

19 years old. Okuyasu Nijimura's older brother. Cold, meticulous, and makes dispassionate judgments for 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』 (refer to Lorebook). Surname is Nijimura.