Bruno Bucciarati/History

Background
Bruno Bucciarati was born the son of a humble fisherman in a coastal town where he spent most of his happy childhood with two loving parents. The anime mentions that it was in a suburb of Naples.

When Bucciarati was seven years old, his parents decided to divorce. His father wanted to remain in the fishing village where they lived while his mother wanted to move to the city. The two decided Bucciarati should choose who he wanted to live with. Bucciarati's mother tried to convince him to come with her to the city and receive an education, but in the end, Bucciarati said he would rather live with his father. Both parents were shocked, but Bucciarati's mother understood the reasoning behind Bucciarati's decision. Bucciarati knew, even at his young age, that once his mother reached the city she would forget the village, even if she was crying and sad at the moment. However, his father would remain alone and slowly grow old and die and that he needed someone there with him. This kindness was a part of Bucciarati's personality, though his mother hoped that this kindness wouldn't change his life for the worse.

As the years went on, Bucciarati's father worked very hard in the hope the Bucciarati would one day move to the city and receive an education. One day, two men pretending to be fishermen presented themselves and asked to be brought to an island. The fishermen seemed strange, one even forgetting to take his fishing rod. Bucciarati's father took the fishing rod and went to go look for the fishermen but upon finding them, he saw that they were in fact gangsters involved with the drug trade with multiple other men.

Bucciarati's father was shot seven times but a nearby coast guard ship passed by, forcing the gangsters to flee. The crew found him and he was rushed to the hospital. However, while Bucciarati's father was unconscious, the same two gangsters sneaked into his room, intending to finish him off. While one stood guard, the other moved in to kill Bucciarati's father, when suddenly he found a knife pointed at him by twelve-year-old Bucciarati, who had been hiding under the bed to protect his father knowing the people who tried to kill him would come back. Bucciarati killed both gangsters but knew that the police couldn't protect him or his family from retaliation. He thus joined Passione in exchange for the protection it could give him against the two gangsters' friends who might be seeking revenge.

For a few years, Bucciarati worked under Polpo, not thinking too much of the gang's actions, though this was about the time the gang started dealing drugs within the city. Five years later, Bucciarati's father died of complications during his surgery, but Bucciarati knew the gang was involved with the operation and that they were trying to separate him and his father. Ultimately, Bucciarati's trust was betrayed when he inevitably found out about Passione's drug deals, but he could do nothing about the situation regardless. At the same time, Bucciarati had been working to build a team of trustworthy individuals, recruiting four teens and men at the nadir of their lives: Pannacotta Fugo, Leone Abbacchio, Narancia Ghirga and Guido Mista.

One day, Bucciarati learned about Leaky-Eye Luca's death and was tasked to investigate the matter. Bucciarati also received a request from a flower shop owner who explained that his daughter had mysteriously jumped from atop a building to kill herself and asked Bucciarati to take revenge on his daughter's boyfriend whom he thought was the culprit behind this incident. Willing to give the man closure but being against simple murder, Bucciarati thus sent Mista to interrogate the boyfriend while Fugo convinced him to be sent instead.

At the same time, Mista had been spotting Rolling Stones stalking Bucciarati but his confusion worried Bucciarati, who decided to follow Mista. Bucciarati was almost touched by Rolling Stones but was saved by Mista grabbing it and jumping from the seventh' floor to destroy the stone, surviving the fall by landing on Fugo's car. Mista had learned that Rolling Stones showed that Bucciarati was fated to die and sought to prevent this fate by destroying the stone. Seeing both Mista and Fugo injured, Bucciarati ultimately decided to investigate Luca's death.

Meeting Giorno Giovanna
Bucciarati encounters Giorno Giovanna on a funicular and interrogates him about the murder of Luca. He uses Sticky Fingers to intimidate Giorno by using Luca's dead body parts before engaging him and his Gold Experience in direct combat, with the intent to kill the teenager. Bucciarati is punched by Giorno's Stand, leaving him vulnerable to a follow-up attack that knocks a tooth out of his mouth. Realizing that a direct confrontation might be dangerous against Gold Experience's power, Bucciarati decides to flee and recuperate, but Giorno gives chase, refusing to let him escape. Finding a crowd of people, Bucciarati uses his Stand hide inside the body of a thirteen-year-old but is quickly discovered by Giorno using Gold Experience's power and his own missing tooth. Bucciarati decides to directly fight Giorno and tricks him into attacking the arm of a bystander he's attached on himself and almost cuts Giorno down with his zippers; however, Giorno detaches his own arm to punch Bucciarati again. Defeated, Bucciarati is taken aback when Giorno spares him. He learns that Giorno's decision was based on his hesitation at the sight of the arm belonging to the teenager he hid inside of; it had been injected with drugs. Bucciarati has only been spared because Giorno has seen that he is a good person.

Following the conclusion of their fight, Giorno declares his intention to infiltrate Passione and considers Bucciarati an ally, although the gangster is quick to inform him that if either his ambitions to take control of the gang or his involvement as Luca's killer are discovered, he will not offer assistance to him as he claims that no one would help a traitor. After Giorno is initiated into Passione through one of Polpo's trials, Bucciarati explains to him that the most efficient way to overthrow the Boss is to be in his good graces and proceeds to introduce Giorno to his group.

Promotion to Capo
After Polpo is murdered by Giorno, staged to look like a suicide as he had used Gold Experience to disguise a gun as a banana, Bucciarati takes his gang to the island of Capri in order to seize four billion lire worth of hidden treasure that once belonged to Polpo, with Bucciarati having helped him hide it in the past. After being attacked by the Stand Soft Machine and its user, Mario Zucchero, and after Mista defeats Sale, Bucciarati eventually obtains the hidden treasure and hands it to Pericolo, who promotes him to the rank of capo and then immediately gives him the mission to protect the Boss' estranged daughter - Trish Una - from a rogue assassin team who seeks to kidnap and use her to expose the boss' identity.

Bodyguarding Trish
After a failed first mission resulting in Narancia sustaining an injury and an entire street being set on fire due to a battle between him and Formaggio, Bucciarati moves Trish and also retrieves a key from Pompeii for a turtle that possesses a Stand that will serve as a room for the group. This leads to an altercation concerning Fugo, Abbacchio, and Giorno and the enemy Stand user Illuso with his Stand Man in the Mirror. Upon examining the key, the team finds further instructions to go to Naples' train station and board a train to Venice. Bucciarati notices that he is followed by two assassins but finds Coco Jumbo, a turtle Stand User which can be used as a hideout. Thus, Bucciarati's team hides in the turtle, confusing the assassins.

Later, while on board a moving train bound for Florence, Bucciarati and Mista battle against Prosciutto's The Grateful Dead and Pesci's Beach Boy. The Grateful Dead accelerates the aging of everyone aboard the train, including most of the group, leaving only Bucciarati and Mista to fight the assassins off. Though Mista is nearly killed by Prosciutto and unconscious for the rest of the fight, Bucciarati ambushes the two enemies and pulls Prosciutto out of the train along with him, successfully getting him off and re-entering the train in short order. However, Pesci becomes resolved to avenge his brother figure, and relentlessly attacks Bucciarati with his Stand's hook. With Beach Boy almost reaching his heart, Bucciarati unzips himself into many pieces to stop the hook. However, unlike the situation with Zucchero's head, Bucciarati's parts are truly disconnected from each other, slowly killing him. He nearly dies before the train steers and brings his parts back together just as Pesci retracts his Stand's line. Pesci stops the train and Bucciarati faces off with him outside, ending with Pesci being the victim of a punch barrage from Sticky Fingers as he's taken apart by the zippers and thrown into the nearby pond. Bucciarati and the gang continue their journey to Venice.

While the team steals a car, Bucciarati and Trish are attacked by Baby Face and promptly defeated, but Giorno intercepts Baby Face and defeats him, also sending a snake after Melone to get rid of him. The team is instructed to use Moody Blues and discover Pericolo who tells them to retrieve a disc containing further instructions for Trish's final delivery. The team subsequently finds the disc, learn about the instructions and reach San Giorgio Maggiore, the final destination of their mission.

Going Traitor
Equipping himself with a "lucky charm" - secretly a tracking device - from Giorno after reaching the island of San Giorgio Maggiore, Bucciarati volunteers to escort Trish to the top of the church's belfry to meet her father. Trish, having never met her father, shies away from the elevator. Bucciarati responds by reassuring her that her father loves her and that she'll soon be given a new identity so that she could live her life in peace. To further comfort her, Bucciarati lets her hold his hand during the elevator ride up. It is then that after noticing the elevator ride felt somewhat shorter than expected, Bucciarati turns around to see that he's actually holding Trish's severed hand. He immediately realizes that the Boss only wanted Trish brought to him so that he could kill her himself and erase any potential leads to him and his identity, and in a fit of anger, gives pursuit.

Sneaking up on the Boss from behind a column in order to assassinate him and save Trish, the Boss orders him to leave or die. The moment Bucciarati attacks, the Boss vanishes and asks him why he would betray the gang despite a mission accomplished. Yelling out that Trish never had a father in the Boss and that he will never understand how he feels, Bucciarati pulls out a mobile phone to contact Giorno. Given directions from his ally, he attacks the Boss through a nearby column, only to hit what he soon realizes is himself, left confused as his conscience switches over to the other him. The Boss and his King Crimson reappear before Bucciarati and punch clean through his torso, and though grievously injured, Bucciarati zips up the wound to trap King Crimson's hand and retaliates.

The Boss proceeds to activate King Crimson's ability once more: the ability to erase time and see into the future. Effortlessly avoiding being hit, the Boss positions him behind Bucciarati and delivers a fatal chop that cleaves through much of his torso. Dying and helpless to save Trish, Bucciarati screams out and almost witnesses her being killed by her own father before the Boss is suddenly sucked into a turtle; Giorno has used his Gold Experience to revert the ladybug brooch-turned-tracking device back into a clone of Coco Jumbo which forces the Boss into the turtle. Noting how the boy always fills him with courage, Bucciarati musters the strength to take Trish and escape from the Boss by coming up with a plan involving the limited amount of time King Crimson can see into the future. When Giorno reaches Bucciarati, the capo appears to perish on the spot, before awakening and ordering him and the rest of the group back to the boat. Bucciarati later tells his team about his betrayal and asks the team to come with him. Abbacchio admits that he feels most at peace when he's with Bucciarati and Mista merely wants to get at the Boss's fortune, knowing Bucciarati would never fight a battle he couldn't win. Narancia begs Bucciarati for an order to follow him but is told to decide for himself. Fugo and Narancia are left behind, though in the end Narancia ultimately swims after the boat. Giorno notices that Bucciarati does not feel pain nor bleed, and after helping him up from faintness, he is cold to the touch.

The Way to Sardinia
Following confrontations with members of the Boss' Guard Squad, including Tiziano and Squalo and their Stands, Talking Head and Clash respectively, at a restaurant and Carne's unique Stand, Notorious B.I.G., onboard a plane to Sardinia.

On Sardinia, the team investigates a stela near which the Boss supposedly took a picture of Trish's mother. Abbacchio's Moody Blue proceeds to rewind to fifteen years ago but Bucciarati is lures away alongside the rest of the team. Thus the Boss is able to approach Abbacchio and kill him. As a silver lining, Abbacchio manages to uncover the face of the Boss with his Moody Blues in his final moments and pass on his discovery to the team. Bucciarati receives contact from a third party that confirms the identity of the Boss as that of man named Diavolo, and is told to go to the Colosseum in Rome so that the mysterious contact can give them the Arrow which can unlock a power great enough to trump Diavolo's King Crimson.

The Way to Rome
The team is ambushed on a coastal village near Rome by the Guard Squad members Secco and his Oasis and the sadistic Cioccolata and his Green Day. As a corpse, Bucciarati is immune to Green Day's mold and thus is able to fend off Secco. The team is subsequently able to drive to Rome, during which Bucciarati tells a dumbfounded Giorno that he is a dead soul piloting his own decaying corpse and that this state is nothing short of a miracle allowing him to see through his mission. Following a race to the Coliseum while the rest of his gang dealt with Cioccolata, Bucciarati manages to cripple Secco by damaging his hearing by popping a nearby car tire, as Secco desperately holds Vinegar Doppio hostage. However, Bucciarati manages to finish Secco off, sending him walking clumsily into a garbage truck as the Passione member desperately tries fiddling with the zipper that was placed on his body, never to be seen again.

The battle with Secco takes its toll on Bucciarati himself, as his undead body shuts down. Bucciarati loses his sight and hearing. Incidentally, Doppio and Diavolo trick him into leading them to the meeting point with the mysterious party, revealed as Jean Pierre Polnareff. Bucciarati is then deceived into thinking that the teenager is actually Trish, once Doppio is informed by Diavolo through a call that Bucciarati can only sense people by their souls due to being undead - Diavolo disguises his soul as that of Trish's own and, once close enough, attacks and fights Polnareff and his Silver Chariot for the second time.

Chariot Requiem & Diavolo
Once Silver Chariot is pierced by the Arrow in Polnareff's possession after its user is effectively killed by Diavolo and King Crimson and transforms into Chariot Requiem, Bucciarati and Diavolo exchange bodies due to the soul manipulation powers of the newly-evolved Requiem Stand and Bucciarati's body, with Doppio inhabiting it. To stop whoever is in his body, Bucciarati orders his body to be shot. Eventually, after Narancia is gruesomely killed by King Crimson, it is deduced that Diavolo is hiding within the body of Mista "behind" the soul of Trish who also inhabits the body and Diavolo takes control. Giorno, Mista and Trish try to keep the Arrowhead away from Diavolo but the Boss then decides to punch through Trish, sending Mista's body flying towards theRe Arrow before anyone can react.

Fortunately, Bucciarati also deduces the weakness of Chariot Requiem and destroys the soul light behind his head to save Trish, rob Diavolo of the Arrow and return everyone to their original bodies. This, in turn, allows Bucciarati's soul to finally transcend to the afterlife. As a spirit, he says his goodbyes to Giorno, thanking him for having brought him back to life, not just literally but by restoring the dying faith in his soul. Ascending to heaven, guided by angels, Bucciarati shows his appreciation for having met Giorno in Naples by leaving the Arrow in his hands, allowing him access to greater power.