|Title|| Varia Officer|
|Manga Debut||Chapter 219|
|Anime Debut||Episode 136|
|Box Animal||Bel Box Weapon|
Fran is the newest member of the Independent Vongola Assassination Group, Varia. He uses the "666" Hell Ring however this rings real name is unknown. He was first seen in the Future taking part in the raid on the Millfiore Base goaded by the Varia. He is Mammon's replacement as the Varia's illusionist and because of this he must wear a large gray frog hat to symbolise this. Despite acting antagonistically towards the other members of the Varia, he has a calm and collected demeanor, constantly verbally bullying them. It was revealed that his master was Mukuro Rokudo, who had escape from Vendicare Prison with his help.
 Plot Synopsis
 Melone Base Invasion
During the Melone Base Invasion, Irie Shoiuchi says that there will be a worldwide attack on the Millefiore on that day, and that the main battle will be in Italy. The Varia, along with Fran, the newest member, are shown taking over the Millefiore castle headquarters. Fran is then paired up with Bel, whom he refers to as "Bel-senpai". They encounter Bel's twin brother, and his butler. Bel's brother, Rasiel, was presumed dead but revealed to have been saved by the fake Mare Ring. They fought, and Fran used an illusion portraying his and Bel's death to escape.
 After Choice
 Weapons & Abilities
- Bel Box Weapon: Fran's box weapon is a miniature doll of Belphegor coated in Mist Flames. During his battle with Ghost it's flames were absorb and thus destroyed.
- "666" Hell Ring: Fran has possession of one of the most powerful Mist Rings. The "666" Hell Ring.
 Win-Lose Battle Record
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