Watanabe no Tsuna saw the sky growing dark, so he helped the lady onto the horse, and they rode together towards the residence at Gojo.
Just as they were about to arrive at Gojo, the beautiful woman suddenly attacked Watanabe.
It turned out that this beautiful woman was actually the demon Ibaraki-dōji in disguise, who usually lurked above Rashomon Gate, and was now attempting to kill Watanabe no Tsuna.
Unfortunately for the Ibaraki-dōji, he had overlooked one thing, for Watanabe no Tsuna had on his belt the famous sword "Onikiri," borrowed from Minamoto no Yorimitsu, and he directly chopped off the arm of Ibaraki-dōji that was grabbing his hair.
After being injured, Ibaraki-dōji fled towards the direction of Mount Atago.
And since then, "Onikiri" was renamed "Onikiri."
