There is a record in the National Diet Library that Mr. Denda is a descendant of Amenouzume no Mikoto.
If you look at this,
Izumo Taisha's Tenho Himei →Nomi inn→
Bestow a surname on an animal for merit.
Mamuta, Ashishima, Fuda, Denta,
Governing sewing (the institution that makes clothes in the court) (Tsukiki)?
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