Josuke Higashikata!

Koichi Hirose: Josuke is a close friend of Koichi and frequently worries about his well-being. For example, when Koichi finds himself the target of Yukako's affections, Josuke takes steps to make Koichi seem less attractive. Josuke respects Koichi's courage in difficult times and sees him as a good friend and a worthy ally, relying on him for help in various battles.
Okuyasu Nijimura: Initially, Josuke and Okuyasu met as enemies, but after Josuke heard Okuyasu's story and motives, they quickly became friends, and Josuke frequently accompanies him on his everyday adventures. They often encounter or fight Stand users, such as Tonio, Otoishi, Shigechi, Mikitaka, Toyohiro, and Kira. They have such a strong bond that when Kira attacked and nearly killed Okuyasu, Josuke refused to leave him (even though Okuyasu appeared to be dead) and began dragging his body, though this slowed Josuke down.
Rohan Kishibe: Similar to Okuyasu, Josuke and Rohan initially meet as enemies, and although they don't have further issues after that, they don't view each other amicably. Rohan suspects Josuke of trying to swindle him out of money, and Josuke begins to suspect Rohan of seeking revenge. Despite this, the two have a certain amount of respect and trust for one another. Due to their contrasting personalities, Rohan had difficulty getting Josuke to listen to him during the fight against Highway Star and saved Josuke's life while risking his own. Josuke began to respect Rohan after that and risked his life in return, searching for Yuya Fungami in the hopes of rescuing him. Although Josuke healed Rohan's pinky finger during their Cee-lo game, and then healed it again after Highway Star, Rohan is angry afterward because he never asked Josuke to do it.
Mikitaka Hazekura: Josuke and Mikitaka see each other as close friends. Mikitaka is especially grateful

Josuke's Stand, Crazy Diamond, can restore objects (and organisms) to a previous state in their history. It's perfect for repairing damage and healing injuries (similar to Gold Experience).

It can also decompose an element into its original components (e.g., a glass of water with salt into sand, water, and salt; a wooden table into tree trunks).

With this, Crazy Diamond can perform a number of incredible feats, such as capturing an enemy by restoring pieces of a broken object around them, or tracking someone by restoring a piece of their clothing, which will seek to reconnect with the rest of the garment.

However, this Stand is not without its limitations: Crazy Diamond can only restore the state, not life; therefore, a lifeless body would still remain dead even after being "fixed" by Crazy Diamond's power. Furthermore, the healing power cannot be used on Josuke himself, or strictly speaking, anything that could be considered part of his current body, or even his own clothing.

Josuke is an experienced, confident, and brave teenager (though he may not seem so at first glance). Friendly and loyal, his cordial personality helps him make friends throughout the story.

Josuke's defining trait is his general kindness, reflected in his Stand, Crazy Diamond, which repairs objects and regenerates organic matter. When an unknown passerby helped save him out of sheer, genuine kindness, Josuke unconsciously mirrored that kindness in himself. Even after the revelation that he is Joseph's son, he first and foremost considered the inconvenience this would cause the Joestars and disregarded any claim to an inheritance, wanting to reassure his biological father that he was financially secure as he was. Agreeable by nature, he is not as prone to violence as other JoJos and can even calmly tolerate bullying from upperclassmen or Shigechi's selfishness. He is loyal to his friends and loved ones, risking his life after Koichi was injured by the Keicho Arc and carrying Okuyasu's body while he was seemingly dead during the first part of his battle against Yoshikage Kira and Killer Queen. When his grandfather died, Josuke took it upon himself to become the protector of Morioh. When meeting someone under non-antagonistic circumstances, he will generally be polite and friendly.

In general, he behaves like a teenager who just wants to hang out, and aside from his overall goal of protecting Morioh from any Stand threats, he concerns himself with more ordinary things, like hanging out with his friends or playing video games. Josuke passively protects his town, only acting when directly asked to do so by the much more proactive Jotaro.

Josuke gets extremely angry if people speak ill of his hair; his kindness vanishes in an instant because he believes it is disrespectful to the man who saved him.

Josuke is a tall young man of average build. He wears a small earring in each ear. The most important feature for him is his well-maintained pompadour hairstyle; styled after an unknown man who saved his life as a child.[4] His pompadour tends to become spiky with his mood, such as when he is irritated or angry.

He wears a modified dark Japanese gakuran school uniform. His jacket fits his body, extending to mid-thigh, accompanied by a pair of wide-leg pants. He keeps his jacket unbuttoned and pushed back at the sides, revealing a light-colored shirt (yellow in the anime) with a short zipper on each side of his chest.

He wears gold metallic emblems on the right and left of his chest. On the left of his uniform collar he wears a modified anchor, and on his right a row of two small hearts. Resting against his chest on his right, with his jacket open, is a peace symbol (☮), and on the left is a heart (occasionally enclosing a palm, as on Jotaro's hat). He wears a gold band on both wrists, above his sleeves (under more elaborate pieces in some illustrations). Regarding his footwear, he wears a pair of original Mr. JUNKO socks and black Bally shoes costing ¥25,000.[5]

Their most common color scheme consists of a dark blue or purple uniform and a green or yellow shirt.

Joseph Joestar, who for unknown reasons, had a one-night romantic encounter with a young Japanese woman named Tomoko Higashikata four years before the events of Stardust Crusaders.

While Joseph and Jotaro were in Egypt fighting Dio, Josuke was suffering from the same symptoms Holy had experienced upon awakening her Stand. One night, a desperate Tomoko was driving to find help for Josuke, who had fallen ill and been in that state for fifty days. That night, it snowed heavily, and her car became stuck. Suddenly, a student with a distinctive pompadour hairstyle agreed to help Tomoko get out. When they investigated, they found nothing more about him, but this encounter left a mark on Josuke. As a way of honoring him, he began styling his hair the same way the young man had in his adolescence, and during that time, he awakened his Stand, Crazy Diamond.

Currently, Josuke is dedicated to protecting Morioh since his maternal grandfather was murdered by Angelo and his Stand. Josuke, along with Jotaro and their friends, is searching for the killer.