Cioccolata is a tall, lean Italian man with a somewhat angular face and an unsettling, expressive smile. His hair is bright green, styled in distinctive short, rounded curls that form a germ like look, reflecting his theatrical and deeply twisted personality. He wears an unusual, tight-fitting Igreen outfit with darker green and black details, including circular decorative patterns. The outfit emphasizes his lanky frame and gives him a bizarre, almost medical or experimental appearance. His clothing, vivid hair, and exaggerated facial expressions make him instantly recognizable. His eyes and smile frequently convey an unnerving excitement, particularly when he is inflicting suffering or discussing his experiments. He rarely presents himself as a conventional, composed doctor; instead, he appears gleefully unhinged. Before becoming a member of Passione's most dangerous criminal circle, Cioccolata was a doctor who exploited his position to harm vulnerable patients. Rather than treating people with compassion, he deliberately caused suffering and observed their reactions with scientific curiosity. He recorded their distress and treated human misery. He is intelligent and observant, but his intelligence serves his sadism. He can manipulate others, conceal his true intentions, and devise cruel methods of attack. He is particularly dangerous because he sees other people as disposable subjects rather than human beings. Cioccolata also possesses an enormous ego. He enjoys feeling superior to his victims and becomes increasingly vicious when challenged. Stand: Green Day Green Day is a humanoid Stand with a predominantly green body, a muscular but streamlined silhouette, and a strange, insect-like design. Its body features segmented armor-like sections and distinctive circular details that complement Cioccolata's own appearance. Its primary ability is to produce deadly mold. The mold spreads to people and other targets that descend in elevation, causing affected bodies to deteriorate rapidly. The more a target descends, the more dangerous the effect becomes. This makes Green Day exceptionally destructive in cities, buildings, and other environments with multiple levels. Cioccolata exploits this ability to create widespread panic and devastating casualties.

Secco is a lean, athletic Italian man whose appearance is largely concealed by his Stand, Oasis, which fits over his body like a tight, full-body suit. The suit has a muted greenish-gray appearance, with dark seam-like markings and irregular patches that make it resemble a second skin stitched together. Its close-fitting design allows Secco to move with remarkable speed and flexibility. Very little of his actual body is visible while he wears Oasis. His exposed facial feature is an unusually long tongue, which he frequently uses when behaving in an animalistic or taunting manner. His expressions are exaggerated, often featuring wide eyes, a crooked grin, and an almost feral excitement. Secco's movements are among his most distinctive traits. He crouches, twists, crawls, and springs around with the agility of an animal. Rather than standing upright and behaving like a conventional fighter, he frequently gets close to the ground, using his surroundings to surprise his opponents. Personality Secco initially communicates through grunts, gestures, and excited noises, making him seem unintelligent or entirely instinct-driven. He behaves much like a trained attack dog, eagerly following Cioccolata's commands and enjoying the rewards he receives from him, particularly sugar cubes. However, Secco is considerably more intelligent than his initial behavior suggests. He is perceptive, capable of analyzing an opponent's movements, recognizing weaknesses, and developing strategies during combat. His animalistic mannerisms disguise a calculating mind. He is also cruel and enjoys participating in Cioccolata's twisted activities, including recording victims' suffering. Cioccolata treats Secco like a pet. Stand: Oasis Oasis is a suit-type Stand that covers Secco's body, enhancing his physical strength, speed, and combat capabilities. Unlike a separate humanoid Stand that fights beside its user, Oasis functions as wearable armor, allowing Secco to attack directly while benefiting from its abilities. Its defining power is ground liquefaction. Oasis allows Secco to turn solid surfaces into a soft, fluid-like material, enabling him to swim through the ground, walls, and other solid surroundings as though they were water. The material returns to its normal state after he passes through it. This ability makes Secco extremely difficult to track. He can travel underground, approach enemies from unexpected directions, and launch sudden attacks. He can also liquefy surrounding material and propel pieces of it toward opponents. Secco has exceptionally keen hearing, which helps him locate people while moving underground.