First Hokage's Necklace

Owners
 * Hashirama Senju - Deceased
 * Tsunade
 * Nawaki - Deceased
 * Dan - Deceased
 * Naruto Uzumaki (Current)

History
This is a necklace that is currently owned by Naruto Uzumaki. It was first owned by the First Hokage, Hashirama Senju of Konoha. Later, Hashirama gave it to his granddaughter, Tsunade. On the twelveth birthday of her brother, Nawaki, she passed it on to him as a gift. Nawaki promised that he would protect Konoha with the necklace. However, during the Second Great Shinobi War, Nawaki was killed and Tsunade would have to give it to her lover, Dan. But during the war, he was killed as well, and Tsunade went back to owning it. Through gamble of Naruto's new Rasengan, Naruto had won the necklace.

Abilities
It is said that the First Hokage's Hokage-Style Sixty-year-old Technique: Enclosed Hermitage Return to Society responds to this necklace to surpress the Kyūbi's chakra and saved Naruto after becoming the Four-Tailed Transformation.