Hitokotonushi is also known as katsuragi no hitokotonushi no ōkami in the Kojiki. A mountain deity who is able to utter oracles of good or evil in a single word, or hitokoto. Kojiki relates the story of an emperor, accompanied by an entourage, who climbed Mount Katsuragi and meets another group who appears similar to his entourage. Enraged, the emperor demanded to know where they come from. The leader proclaimed himself as "hitokotonushi no okami." The emperor and his entourage then paid their respects by surrendering their clothes to the deity.
Other accounts tell of him as a hermit living in the mountains, thus his association to the Hermit Arcana.
He does not appear as a summonable demon, but Hitokotonusi appears when Raidou Kuzunoha the XIV casts the skill "Hitokoto Gust," which deals heavy Force damage to all enemies. This skill is the equivalent of the "Whirlwind" skill used by Dante, who is replaced by Raidou in the latest version of the game.
Shin Megami Tensei IV Apocalypse
"Japanese god of words, thought to be the deification of echoes. In the Kojiki, Emperor Yuraku's party supposedly encountered Hitokotonushi at Mt. Katsuragi. Said to proclaim good and bad in a single word. All words uttered by him come true."
—Shin Megami Tensei IV Apocalypse compendium
Hitokotonushi can teach Nanashi the Mahamaon, Dekunda, Purple Smoke and Tetraja skills through his Demon Whisper. He benefits from learning Light, support and Electricity skills.
Devil Summoner: Raidou Kuzunoha vs. The Soulless Army
Hitokotonusi appears as a boss fight in the Dark Realm. He had placed a curse on the admiral of the Navy which was then transferred to Raidou Kuzunoha the XIV. Raidou defeats him and removes the curse. Upon meeting Hitokoto-Nushi, the demon says;
"I am the god who proclaims evil or good in a single word... I am Hitokotonushi, God of Katsuragi! The grudge of the Kunitsu remains... for that reason, the Super Soldier Project--the good--exists. Try to stop us, Kuzunoha... and I shall proclaim evil on your soul! Bow before me!"
After Raidou defeats Hitokoto-Nushi, the demon says the following;
"... cursed fox... you have been tamed by the crow..."
Devil Survivor 2
"Japanese god of words, thought to be the deification of echos. In the Kojiki, Emperor Yuraku's party supposedly encountered Hitokotonusi at Mt. Katsuragi. Said to proclaim good and bad in a single word. All words uttered by him come true."
—Devil Survivor 2 Compendium
Hitokotonusi spawns as in one of the last enemy waves as a boss enemy while the player escorts Yamato Hotsuin around the map. Hitokotonusi will become available for fusion only after his defeat.