When the fish hook he lends to his younger brother is lost at sea, he demands its return rather than to accept any compensation.
Later, Hoderi is defeated after attacking Hoori (who has obtained mastery of the tides with a magic jewel) and vows to serve his younger brother forever onward.
According to the Kojiki, Umisachi-hiko or Hoderi ("Fire Shine") was the eldest son of the god Ninigi and the blossom princess Konohanasakuya-hime, who gave birth to triplets.
[11] The blossom princess Konohanasakuya-hime, with several aliases including Kamu-Ata-Tsu-Hime (神阿多都比売, "Princess-of-Ata"),[12][13] announced her pregnancy after just one day of matrimonial relationship with Ninigi.
Offended by the suggestion, the princess sought to prove proper paternity by undergoing ordeal by fire: she declared she would seal herself up inside a maternity house, and set it aflame; then she avowed, may no child survive the birth if they were not of the seed of the divine Ninigi.
Hoderi is recorded in these ancient chronicles as the ancestor of hayato people of Aka (Satsuma and Ōsumi Provinces).
In searching for his brother's magic hook he fell in love with princess Toyotama-hime, daughter of Ōwatatsumi-no-kami, the dragon kami of the sea, and made her his wife.