sentences:  She, along with Kawahira, belongs to a special race that had existed far before humans -their main job is to preserve the Tri-ni-set in order to protect the balance of the Earth.When she and Kawahira were the only two remaining members of their race and unable to provide the Tri-ni-set with enough flames, they split the Tri-ni-set into Arcoblaeno Pacifiers, Mare Rings, and Vongola Rings.Borrowing power from human race, she gave the Vongola Rings to Giotto while she kept the Mare Rings to be passed down within her Family.