The Inu Inu no Mi, Model: Okuchi no Makami is a Mythical Zoan-type Devil Fruit that allows the user to transform into a wolf deity and a hybrid version thereof. It was accidentally eaten by Yamato.
As noted by Kaidou, said wolf is the "Guardian Deity of Wano", making this Zoan particularly valuable. Its power was first hinted at during Yamato's confrontation with Sasaki when Yamato briefly flashed her fangs, before its power was properly introduced in Yamato's later fight with Kaidou on the Skull Dome's roof.
- Inu (犬?) is Japanese for "dog".
- The "Ōkuchi-no-Magami" or "Ōguchi-no-Makami" (大口真神? lit. "Large-Mouthed True God") is the deification of the extinct Japanese gray wolf, once worshipped in Japan as a guardian of humans.
- In the Viz manga, the fruit is called Dog-Dog Fruit, Mythical Type, Model Okuchi-no-Makami.
Strengths and Weaknesses
This Devil Fruit grants the power to transform into a hybrid and full version of the Okuchi no Makami—a legendary wolf that, according to Kaidou, is a "Guardian Deity of Wano Country" (ワノ国の守り神 Wano Kuni no Mamorigami?). While transformed, the user's hair becomes longer and more untamed, they gain a ribbon-like trail of flames around their shoulders, and grow a large tail.
The transformation greatly bolsters the user's physical abilities and, as a carnivorous Zoan, presumably bestows heightened predatory instincts, on top of equipping the user with canine fangs and claws well-suited for combat. More specifically, the wolf form seems to come with a dramatic increase in physical strength, in Yamato's case enough to let her clash near-evenly with her father Kaidou, an Emperor of the Sea, while the latter has assumed his extremely powerful human-dragon form.
Moreover, as with other fruits of the Mythical Zoan variety, this one blesses the user with at least one special ability: in particular, the user becomes able to create ice or some such substance, which they can expel as blasts from their mouth or otherwise make appear from their body.
No weaknesses are currently known of this ability beside the standard ones for a Devil Fruit user.
Yamato utilizes this fruit's power for battle. She has proven able, in her Human-Beast Form, to fight on nigh-even grounds against her father, Kaidou, while the latter was in his half-dragon form, with Kaidou commending her level of strength. In hybrid form, Yamato prefers to still wield her kanabo like she does in Human Form (similarly to Kaidou), enhancing her melee combat prowess.
- Namuji Hyoga (
無侍 氷牙Namuji Hyōga?, literally meaning "Non-Samurai Ice Fang"): A technique where Yamato rears her head back, takes a deep breath, and then abruptly exhales forward a dense blast of ice at her target of choice. First seen used by Yamato in her Human-Beast Form against Kaidou, atop the Skull Dome, the attack proved strong enough to clash against and counter Kaidou's Bolo Breath (used by the latter in his own hybrid form). Namuji may be a reference to the Japanese deity Ōkuninushi, who is also known as "Ōnamuji". In the Viz manga, the technique is called Namuji Glacier Fang.
- Kagamiyama (鏡山 Kagamiyama?, literally meaning "Mirror Mountain"): A defensive technique where Yamato seems to encase herself fully in ice, which initially cannot be distinguished from her body. Should Yamato be struck by an enemy attack, said armor-like coating will absorb the damage, becoming visible as it cracks and breaks off Yamato like glass, leaving her unharmed. The technique was first seen following a Raimei Hakke clash between Yamato and Kaidou, the former using it to keep herself from being injured. Kagamiyama (鏡山?), or Mount Kagami, is the name of a mountain in the Saga Prefecture of Japan. According to an old legend, Matsu-ura Sayohime bid farewell to her husband Ōtomo no Satehiko at the mountain's top and prayed for his return so intensely that she turned to stone. The Viz manga calls the technique Mirror Mountain.
- Himorogiri (氷諸斬り Himorogiri?, literally meaning "Icy Various Cuts"): An offensive move where Yamato, in her Human-Beast Form, leaps into the air and starts vertically spinning her kanabo to her left, making a swirl of ice form around her weapon. Therewith, she consequently strikes down upon her foe from above. When first using this attack against Kaidou, she struck the back of his head and knocked him to the ground despite Kaido blocking with his own club, but otherwise failed to deal him any damage. The attack's name is a pun on himorogi (神籬? lit. "divine fence"), a Shintō term referring to sacred spaces/altars used for kami worship, consisting of square areas demarcated by green bamboo or sakaki. The Viz manga calls the technique Hallowed Glacier Slash.
Kaidou claims to have had a difficult time acquiring this Devil Fruit and never intended for it to be eaten by his child. Regardless, at some point, Yamato came across it and, not knowing the fruit's nature, ate it out of hunger, gaining its powers at the cost of losing the ability to swim, and thus giving Yamato even less hope of ever escaping from Onigashima on her own.
- This fruit is the second model of the Inu Inu no Mi series that is based on a wolf species, the first being Jabra's regular wolf Zoan. It is also the second (canon) Mythical variant of the dog Zoan, being introduced in the same story arc as the first one (that is based on another canine found in Japanese folklore).
- The Ōkuchi-no-Magami—or simply Makami/Magami (真神?)—is the deification of the now-extinct Japanese wolf, which was traditionally worshipped as a sacred beast in Japan, in places like the Yamato Province. For centuries, the Makami was held as a guardian deity that understood human language and protected humans from misfortune, fire and theft, their crops from despoilment by animals, etc. Once a rather popular folkloric figure, the Makami's worship fell into decline with the rapid depopulation of Japanese wolves following the Edo period, during the Meiji era when systematic wolf hunting culled the species until it went extinct in the early 1900s. Today, the Makami is a relatively obscure deity, though it remains enshrined at various locations, like the nearly 2000-year-old Mitsumine Shrine in Chichibu-Tama-Kai National Park.
- Yamato possessing this fruit's power may also reference a particular mythological tale from the 2nd century AD, about the legendary Japanese prince of the Yamato dynasty, Yamato Takeru (possibly Yamato's namesake). The story tells of a white wolf whom said prince encountered in a moment of despair, after having gone astray in the mountains. Said wolf guided the prince out the mountains' deep forests and thereby saved his life. In appreciation, the prince supposedly had many shrines constructed in dedication to the wolf god of the mountains, including the above-mentioned Mitsumine Shrine in Chichibu, Saitama (the supposed location of said mountains).
- The trail of flames around Yamato's shoulders, forming a circle behind her head, resembles the floating, ribbon-like drapery found with certain depictions of East Asian (especially Buddhist) deities, including on Japanese statuary, befitting the Ōkuchi-no-Magami's own status as a deity.
- One Piece Manga — Vol. 99 Chapter 996 (p. 6), Yamato is first shown activating the fruit's power.
- One Piece Manga — Chapter 1020 (p. 2), The fruit is named, and the animal it is based on identified, by Kaidou.
- One Piece Manga — Chapter 1019 (p. 18-19), The fruit's power is first displayed in full.
- One Piece Manga — Chapter 1020 (p. 2-4), Yamato fights Kaidou, both being in their respective Human-Beast Form.
- One Piece Manga — Chapter 1024 (p. 5-7, 16-17), Yamato continues fighting Kaido.
- One Piece Manga — Chapter 1025 (p. 4-7, 13-15), Yamato continues to physically clash against Kaido.
- One Piece Manga — Chapter 1020 (p. 3-4), Yamato uses Namuji Hyoga to counter Kaidou's Bolo Breath.
- One Piece Manga — Chapter 1025 (p. 3-4), Yamato uses Kagamiyama.
- One Piece Manga — Chapter 1025 (p. 4-5), Yamato uses Himorogiri against Kaidou.
- One Piece Manga — Chapter 1019 (p. 18), Kaidou and Yamato talk about the fruit and why Yamato ate it.
- Makami: Japanese Wikipedia article on the mythical creature this fruit transforms the user into.
- Japanese wolf: Wikipedia article on the Japanese gray wolf, which said mythical creature is based on.