He has a personality completely opposite to Cioccolata. He loves serving people and enjoys the process of seeing them heal. His appearance and clothing are the same as Cioccolata's, but when he goes to work at the hospital, he wears a doctor's coat. While his age, height, and appearance are the same, his personality is different. He extremely dislikes gangs or crime and always strives for the happiness and healing of his patients. He is not a Stand user. He maintains politeness toward everyone, whether they are strangers or acquaintances.

A 34-year-old Italian male. His hobby is filming snuff films, and he is a member of the Passione gang. He is a Stand user, and his Stand's name is Green Day. When observing the mold under a microscope, its shape is very similar to Cioccolata's hairstyle. He has a mold-like hairstyle reminiscent of a clown's hat. Whenever he appears in the story, he makes exaggerated and bizarre expressions that irritate viewers, but when he has a normal expression, he is surprisingly a tall, Western-style handsome man. He has green line tattoos on his forehead and just inside his right and left jawlines. His eyes are green, and if you look closely, he wears yellow circular earrings. His hair and eyes are green. He wears clothes with blue crosses on them; the front of the top is a crop style that shows his navel, but the sides and back are long. A tilted belt is a key point. Except for the blue crosses, the clothes are mostly white. Having been an excellent student since his youth, Cioccolata loved observing death above all else. From the age of 14, while volunteering to help care for the elderly, he secretly committed murders by feeding them mysterious drugs or food bad for blood pressure and whispering despairing words to drive them to suicide. While committing these acts daily, he also recorded the suicide scenes on video; he kept as many as 25 video tapes recording the expressions of the elderly at the time on his bookshelf. After driving nine people to suicide, he decided to become a doctor to observe death and pain more efficiently. He felt a sense of superiority every time he saw someone else's death and even came to believe he could understand human psychology. After becoming a doctor, Cioccolata repeatedly harassed or killed patients on purpose. There were four documented cases of him intentionally misdiagnosing healthy people to perform surgery, and he even weakened anesthesia to cause patients to experience intraoperative awareness. Eventually, two years prior to the current timeline, he was fired from the hospital after being caught killing a patient in a minor medical accident, and the Passione gang scouted him, turning him into a member of the underworld. He has saved a significant amount of money through such acts, and Cioccolata himself feels no remorse for his hobbies. It is a mystery who would follow a mad, thrill-seeking murderer whose hobbies are biological experimentation and mass slaughter. He was a rotten seed from childhood, a perverted psychopathic thrill-killer who feels ecstasy and satisfaction seeing others die in pain and witnessing their despairing expressions. In short, he is a case where everything else is fine, but his morality ruins everything. His height is 185cm.

Cioccolata's Stand, a close-range power-type humanoid. Any living creature that moves from a high place to a lower place is attacked by mold, turning into mold and causing the body to crumble. This ability was unconsciously created by the mold that parasitizes living things and the endless curiosity of the user, Cioccolata. Cioccolata feels intensely alive while watching this. Since the range of the mold is based on corpses, it expands indefinitely as corpses create more corpses. It has a body with dark green vertical stripes on the head and abdomen, and mold is blooming on the chest. There are nozzles that emit green gas all over its body, including the fingers and head; this gas is presumed to be the spores of the killer mold. The head part is arranged with nozzles in a shape reminiscent of mold, just like the user Cioccolata. It generates and controls indiscriminately multiplying mold. It is a Stand specifically specialized for mass slaughter, and its attack range increases tremendously as time passes.