Bruno Bucciarati makes his first appearance as a member of the fictional gang "Passione," interrogating Giorno Giovanna about the death of another gang member; "Weepy Eye" Luka. Afterwards, Giorno convinces Bucciarati to help him overthrow the boss of "Passione," in a plot to take over the gang. Eventually defecting from "Passione," Bucciarati leads a group of rogue gang members against the boss, who is revealed to be a man named Diavolo. As a child, Bruno was born in a poor fishing village, but he looked up to his father because of the love he had for his family. When his father became mixed up in the drug business and was badly injured, Bruno protected his father from the people that were trying to kill him, by killing them himself. This led him into the world of gangsters. Even though he was a member of "Passione," he had a kind personality; many people came to him for help. Sticky Fingers is the name of Bucciarati's Stand. It has the ability to place a fully functional zipper with a touch. For example: Sticky Fingers can hit a wall, placing a zipper on it. It can then open the zipper, allowing entrance through or into the wall. Its ability is not limited to inanimate objects; it can be used on humans. Bucciarati is able to use its ability on himself. Its ability can also be used offensively, to take things apart, or to mismatch things. Bucciarati delivers his catch phrase while his Stand beats his opponents senseless with its fists. He begins stringing "Ari ari ari" to its rapid punches, saying "Arrivederci" on finish; "Arrivederci" meaning "Goodbye" in Italian.

Moka is a student of the Yokai Private Academy. She's the first person Tsukune met when he first set foot on the monster realm. Moka's true form is a vampire but she is very sweet and kind. She takes a liking to Tsukune after sucking his blood and seems to get addicted on doing so. The reason Moka wears a rosary around her neck is due to her "inner self." When her rosary around her neck is removed (to date Tsukune is the only one capable of removing it), the seal that was keeping her true nature is released. A few physical changes occur, signifying her transformation into a super vampire. Her hair turns silver, her pupils turn to slits, along with a corresponding flash of light. More important than any superficial change, Moka's inner personality rises to the surface. Cold and bloodthirsty, the "inner" Moka is actually a completely different entity from the "outer" Moka, even going so far as to specifically remind Tsukune to "be kind to the other Moka." Moka is also one of the most popular girls around the school so she gets a lot of attention around the guys, but she pays them no attention with the exception of Tsukune (much to the guys' dismay). Moka is an excellent student, ranking 13th overall on the school exams, and also a member of the Newspaper Club. Moka is afraid of water, the reason being the purifying powers of water have an adverse effect on Vampires, hurting them as well as rendering them unable to properly function. It's revealed in an omake that she loves tomato juice, but prefers Tsukune's blood. (Source: Rosario to Vampire Wikia)