Tsuna had been certain that no oni had survived the earlier purge, yet sure enough, as soon as he reached Rashomon, there stood Ibaraki Doji (in some versions Ibaraki Doji had taken the form of a beautiful maiden), and indeed the result of their duel was that Ibaraki Doji had his arm cut off.
まさか鬼の生き残りがいるわけがないと思った綱が羅生門に行ってみると、そこには茨木童子（または美女にばけた茨木童子）がいて、やはり格闘の末、鬼の腕を切り落とした。