sentences:  As the one who administrates the Tri-ni-sette, he is the one who gave the Vongola Rings and Mare Rings to Yuni's ancestor, Sepira, who in turn entrusted the Vongola Rings to Giotto.For decades, he had selected and tricked seven people in each generation that he considered the strongest through contract job or representative battle and forcefully make them protect the Arcobaleno pacifier, cursing them into babies.After Bermuda's defeat, he appears in front of Tsuna and the others and reveal his true identity as Kawahira.