Okuchi-no-Makami

Subject: Okuchi-no-Makami
Era: Wano mythology / present
Related: Inu Inu no Mi, Model Okuchi-no-Makami
Name meaning: 大口真神 Ōkuchi-no-Makami, 'Large-Mouthed True God' (大口 'large mouth' + 真神 makami 'true god') — the deified, now-extinct Japanese (Honshū) wolf, worshipped as a guardian deity that understood human speech and protected people from fire, theft and misfortune, especially in the old Yamato Province; still enshrined at Mitsumine Shrine. Oda pairs it with YAMATO via Yamato Takeru, the prince a white wolf-god guided out of the Okuchichibu mountains.

Structural lore — a mythical wolf revered as the guardian deity of Wano Country.

What we know

Ch. 1020: Okuchi-no-Makami is named on-page (p.2) when Kaido identifies Yamato’s Devil Fruit as the Inu Inu no Mi, Model Okuchi-no-Makami — “a rare Mythical Wolf… a guardian spirit of Wano.”
Ch. 1020: Kaido frames the fruit/role as one to be wielded for his regime — calling the loss of it “to someone claiming to be Oden… especially painful” — and demands Yamato take up the guardian-deity role to keep Wano running (pp.2–4).

大口真神 (Ōkuchi-no-Makami) literally “Large-Mouthed True God.” The core 真神 makami (“true god”) is the folk deification of the Japanese / Honshū wolf, traditionally venerated as a sacred beast — a guardian deity believed to understand human language and to protect humans from fire, theft and misfortune (and crops from animal despoilment), worshipped notably in the old Yamato Province. The cult declined as the Japanese wolf was hunted to extinction in the early 1900s; the deity remains enshrined at the ~2000-year-old Mitsumine Shrine (Chichibu-Tama-Kai).
The pairing with Yamato is the tell. Yamato Takeru — the Yamato-dynasty prince who is Yamato’s namesake (his kanabo is even named Takeru) — was, in legend, guided out of the Okuchichibu mountains by a white wolf-god in a moment of despair, and in gratitude built shrines (including Mitsumine) to the mountain wolf-god. Oda hands the guardian deity of Yamato/Wano fruit to the character literally named Yamato. See Yamato Name Encodes The Wolf-God Fruit Okuchi-no-Makami.
The fruit’s cold-air / ice element likely nods to the Makami’s worship for fire-prevention.

A named protective deity of Wano. Exact place in Wano’s deeper history (Oden-era / Void-Century material) is unrevealed on-page.

Whether Okuchi-no-Makami connects to Wano’s broader mythology and the wolf imagery in Oden-era flashbacks. **