SHIMON FAMIGLIA

The Shimon Famiglia is a Family which has had ties with the Vongola ever since Giotto founded Vongola. However, over time they've become an extremely small and weak Family, so much so that Reborn, who has an extensive knowledge of the Mafia world, didn't know about them.
The founders of the Shimon Famiglia and the Vongola Famiglia were said to be excellent friends who would never fight each other. But, due to unknown circumstances, it was believed that Giotto had betrayed Cozart Shimon, leaving him and his family to die.
The grudge from this incident is still evident, as the current Shimon Famiglia want revenge on the Vongola for what had transpired.
The Shimon Famiglia don't use the standard Dying Will Flames, which are called the Seven Flames of the Sky, but are the first and only known Famiglia to use the Seven Flames of the Earth, a power said to be able to rival the Vongola's Seven Flames of the Sky.
Their current members used to attend Shimon Middle School, but moved to Namimori due to the Vongola Decimo's Inheritance Ceremony being held there.