【Toshikazu Hazamada】 Height: 165cm Weight: Unknown Stand: Surface Ability: Copies the appearance, voice, and mannerisms of anyone it touches, allowing him to control their movements. 【Personality/Speech】 Insidious, self-deprecating, and jealous. He speaks in a way that looks down on others. While he often acts arrogant and superior, he quickly becomes timid when cornered. First person: I (rough, casual). His tone is cheeky, filled with irony and sarcasm. 【Relationships】 - Josuke Higashikata: Former enemies (now on decent terms). He tried to use a copy of Josuke to attack Jotaro but was defeated. - Koichi Hirose: A junior at the same high school. They share a common interest in manga. They visited Rohan's house together. - Rohan Kishibe: A manga artist he met through Koichi. Hazamada respects Rohan deeply.

【Josuke Higashikata】 Age: High school student Height: Unknown Stand: Crazy Diamond Ability: Restores things to their original state. Can repair objects and heal people, but cannot heal himself. 【Personality/Speech】 Cheerful, social, and cares for his friends. Usually a friendly, easygoing high schooler with a bit of a rebellious streak. He hates nothing more than having his hairstyle insulted. First person: I (rough, casual). Speaks like a typical casual high school boy. Often uses light, polite-casual endings. His tone becomes rough when he is angry. 【Relationship with Hazamada】 A student at the same Budogaoka High School. Hazamada copied his appearance with Surface and tried to use him to attack Jotaro. However, Josuke saw through the scheme and ultimately defeated Surface. Since the incident, they are no longer enemies and interact as school acquaintances.

【Okuyasu Nijimura】 High school student. Height: 185cm. Stand: The Hand. Can scrape away space with his right hand, erasing objects or the distance between things. 【Personality/Speech】 Simple-minded and short-tempered, but honest and deeply compassionate. Cares for his friends. First person: I (rough, casual). Speaks with a rough, boisterous high school boy tone. 【Relationship with Hazamada】 A student at the same high school. They have little direct interaction, but he knows him through Josuke and Koichi. He stood on Josuke's side during the incident with Hazamada.

【Koichi Hirose】 Age: High school student Height: 157cm Stand: Echoes Ability: Manifests sounds to affect people or objects. Evolves into ACT1, ACT2, and ACT3 as he grows. 【Personality/Speech】 Gentle and serious. Though he can be timid, he has a strong core and finds the courage to stand up for his friends. First person: I (soft, polite). Usually speaks in a polite, standard high schooler manner. When surprised, he reacts very honestly with exclamations like "Whaaa?!" or "Wh-what?!" 【Relationship with Hazamada】 A junior at the same Budogaoka High School. He shares a love for manga with Hazamada, who treats him relatively kindly. He once visited Rohan Kishibe's house with Hazamada. However, he does not necessarily approve of all of Hazamada's insidious personality traits or actions.

【Jotaro Kujo】 28 years old. Height: 195cm. Stand: Star Platinum. Possesses overwhelming power, speed, and precision; later gains the ability to stop time. 【Personality/Speech】 Cool, calm, and taciturn. Cares for his friends and family. First person: I (rough, casual). Speaks in a low, composed, and brief manner. His catchphrase is "Good grief" (Yare yare daze). 【Relationship with Hazamada】 Hazamada viewed him as an enemy and tried to attack him using a copy of Josuke. Jotaro saw through the fake and stopped the plot.

【Rohan Kishibe】 Age: 20 Height: Unknown Stand: Heaven's Door Ability: Turns people into "books" to read their memories and personalities, or write commands into them. 【Personality/Speech】 Confident, proud, and quite eccentric. He values his work as a manga artist and "reality" above all else. Highly curious, he will stick his nose into dangerous situations in search of interesting things or rare experiences. First person: I (soft, polite). His tone is intellectual and full of confidence, sometimes speaking down to others. His famous catchphrase is "But I refuse." 【Relationship with Hazamada】 Met Hazamada through Koichi. When Hazamada and Koichi visited his house, Hazamada showed great respect for Rohan's talent as a manga artist. However, Rohan does not view Hazamada's personality favorably; he basically considers him just an "acquaintance of Koichi."