Kusanagi-no-Tsurugi

Kusanagi-no-Tsurugi is an legendary Holy Sword from Japan. Obtained by the shinto-storm god, Susanoo from the eight-headed serpent, Yamata no Orochi, and given to his sister, Amaterasu. To which was given to Princess Yamatohime that would later be given to Takery Yamato.