Giorno Giovanna, born Haruno Shiobana on April 16, 1985, to DIO (in Jonathan Joestar's body) and a Japanese woman, endured childhood neglect in Japan where his mother abandoned him nightly, fostering fear and isolation. At four, his mother's marriage to an Italian man relocated them to Italy, prompting his name change. Physical abuse from his stepfather—targeting his habit of observing others—combined with peer bullying, cemented his low self-esteem and belief in a "twisted" destiny. This trajectory shifted when he discovered an injured gangster concealed in tall grass. Lying to the man's pursuers, Giorno subconsciously activated his nascent Stand power to accelerate plant growth, hiding the gangster. Two months later, the gangster returned with gratitude and protection, halting the stepfather's abuse and granting Giorno social acceptance. The encounter ignited an inner "cool breeze," reshaping his worldview and birthing a dream: to reform Italy’s mafia into a force for good as a "Gang-Star." His core trait became "resolve" (覚悟, kakugo)—decisive action and unyielding commitment despite adversity. He demonstrated this by accepting self-inflicted injuries in combat to gain tactical edges. Focused on eradicating drug trafficking targeting minors within Naples’ dominant gang, Passione, Giorno worked as a petty thief at Naples Airport by age 15. There, he met Koichi Hirose, dispatched by Jotaro Kujo to find him. Giorno scammed Koichi, transforming his luggage into a frog using his Stand, Gold Experience. This Stand imbued objects with life, creating organisms for combat, tracking, or healing. Striking living beings induced sensory overload, accelerating their thoughts while paralyzing their bodies. Giorno’s entry into Passione followed an altercation with gang member Leaky-Eye Luca, who demanded protection money. When Luca attacked him and a frog (the transformed luggage), Gold Experience’s reflective ability rebounded the assault, leaving Luca comatose. Bruno Bucciarati, investigating Luca’s condition, confronted Giorno on a funicular. Detecting Giorno’s lie, Bucciarati attacked with his Stand, Sticky Fingers. During the fight, Giorno uncovered Gold Experience’s sensory disruption power and strategically transformed Bucciarati’s tooth into a tracking fly. After disabling Bucciarati, Giorno spared him upon recognizing his inherent goodness through concern for a bystander. Giorno then revealed his plan to overthrow Passione’s boss and end drug trafficking. Convinced, Bucciarati aided his gang initiation. For his initiation test, capo Polpo ordered Giorno to guard a lighter’s flame for 24 hours. After circumventing prison security by turning the lighter into a flower, he nearly failed when a janitor accidentally extinguished it. The janitor relit it, activating Polpo’s Stand, Black Sabbath, which killed the janitor for "retesting." Giorno and Koichi—who witnessed the relighting—collaborated to defeat the Stand by luring it into sunlight using accelerated plant decay. Giorno later engineered Polpo’s death by transforming one of his guns into a banana, causing the capo’s suicide. This secured Giorno’s Passione membership and placement in Bucciarati’s team. Initially met with skepticism in Bucciarati’s team, Giorno proved his resolve and ingenuity during missions like retrieving Polpo’s treasure and safeguarding Trish Una, the boss’s daughter. Critical battles revealed Gold Experience’s new applications, including creating replacement body parts for healing. Upon learning boss Diavolo intended to kill Trish to erase his identity, Giorno and Bucciarati rebelled. Most teammates joined their mission to expose and defeat Diavolo. At Rome’s Colosseum, Giorno obtained a Stand-creating Arrow. Piercing Gold Experience with it awakened Gold Experience Requiem, a form with amplified life-giving powers and the capacity to nullify actions or intentions. Its ultimate ability trapped victims in endless death loops, preventing them from "reaching the truth" of their demise. Giorno used this to defeat Diavolo, ascending as Passione’s new boss to reform the organization. Personality-wise, Giorno maintained calm composure and polite speech but exhibited ruthless pragmatism against enemies, exemplified by orchestrating Polpo’s death and delivering brutal final blows to foes like Cioccolata. He prized life highly, refusing to sacrifice allies and often drawing danger toward himself. Childhood trauma fostered introversion, yet he displayed charisma and observational acuity for effective leadership. His dual heritage merged Jonathan Joestar’s protective instincts toward allies with DIO’s calculated cruelty toward opponents. Mundane interests, such as craving Margherita pizza, occasionally surfaced, but his focus remained unwaveringly fixed on his goals.