The Necklace of the Rain Version X (雨のネックレス バージョンエクス, Ame no Nekkuresu: Bājon Ikusu) is the upgraded Original Vongola Rain Ring, upgraded by Talbot. The necklace was upgraded with Kojirou (the Vongola Box Rings)and Jirou, Penalty, and Yamamoto's resolve. The necklace is shaped like a miniature sword which has the design of Jirou's head on it and a 10th Generation crest. This necklace, as revealed by Talbot, is made exclusively for the 10th Generation Vongola Family. It took the form of a necklace to best suit Yamamoto's fighting style.