Tsuna kept the demon's arm at his house in Watanabe no Tsu, Settsu Province (present Chuo Ward in Osaka Prefecture), but it is said that the demon recovered it by disguising himself as Tsuna's mother-in-law.
腕は摂津国渡辺津（大阪市中央区）の渡辺綱の屋敷に置かれていたが、綱の義母に化けた鬼が取り戻したとされる。