Kimura Shigekore, a vassal of the Toyotomi family, once bought the tantou from the very rich merchant Hirano Dousetsu (or Michiyuki) and presented it later to Hideyoshi. Then it later went to Maeda Toshinaga, who later gave it to Tokugawa Hidetada. After that it returned to Maeda family when Maeda Toshitsune married Hidetada's daughter Tamahime.
Hirano Toushirou shares a similar character design to Maeda Toushirou because they both served under the Maeda Clan. Maeda Toushirou was wielded by Maeda Toshimasa (前田利政) and Hirano was wielded by Maeda Toshinaga (前田利長), Toshimasa's elder brother.