Susanoo
From one of Orochi's tails, Susano'o took out a sword, which he called Ame-no-Murakumo-no-Tsurugi ("Heaven's Cloud-Gathering Sword"), later known as the Kusanagi-no-Tsurugi. The sword was given to Amaterasu as a  gift and was later given to her descendant Ninigi (the great-grandfather of Emperor Jimmu), with the Yata-no-Kagami (a mirror) and magatama (sacred jewels) as proof of his divine right to rule on Earth (the three Imperial Regalia of Japan).