Okidogi is a bulky, bipedal canine Pokémon, with broad shoulders, pointy ears, and a large, fluffy tail. Its fur is almost entirely black, except for the green on its muzzle, face, chest, hands, back, waist, thighs, and feet. It has magenta crescent-shaped markings on its face, which also contains yellow eyes, a rounded magenta nose, and sharp teeth. Its ears have magenta insides, and its hands have five fingers each and magenta paw pads. Hanging around its neck is a magenta chain that resembles a leash. Okidogi is a male-only species with no female counterpart.
In Kitakami myth, it is said that Okidogi was once a smaller, weaker Pokémon, but a desire for strength led it to obtain Pecharunt’s Toxic Chain and warp it around its neck. Okidogi transformed as the chain enhanced its capabilities, granting it a powerful physique by stimulating its muscles heavily. The toxic chain, when thrown, is powerful enough to let Okidogi pulverize anything it hits. It is a ruffian with a short temper, having traveled from a distant land with Munkidori and Fezandipiti to steal Ogerpon's four masks and claim them for themselves, the trio sneaked into Ogerpon's cave and managed to steal three of them while Ogerpon's friend managed to protect one of them. After finding out, Ogerpon finds out about what happened and beats the trio up, Okidogi loses its life in the fight along with its partners. In the villagers' eyes though, it looked like the trio had fallen protecting the village from the enraged ogre, nicknaming them the Loyal Three and giving them a proper burial.
Okidogi, together with Munkidori and Fezandipiti, are known as the Loyal Three, the heroes of Kitakami. They are beloved by the people of Kitakami as heroes that once protected the land from the "evil ogre",[1] and stone statues bearing their likenesses were made by the people as an expression of their gratitude right where the three had been buried.[2] According to locals, worshiping Okidogi will grant kindness and help ensure things are 'okey-dokey' between both sides. Even with its greedy and mean personality, Okidogi has good relationships with its teammates, talking to them in private and acting together to defeat their opponents. By consuming the Kitakami Mochis, Okidogi can become a Titan Pokémon.
As seen on the signs around Kitakami
Origin
Okidogi seems to be based on a dog, specifically the Shiba Inu or the Japanese Akita, as it shares a bulkier appearance with the latter. The similarity is further pronounced with its Shiny form and the association of the Land of Kitakami and the Tōhoku region (Northeast Japan) where Akita Prefecture is located. The chain on its neck resembles a dog leash.
Okidogi, together with Munkidori, Fezandipiti, and Ogerpon, may reference the Japanese folktale of Momotarō. The tale relates the titular Momotarō, a boy born from inside a peach, who traveled alongside a talking dog, monkey, and pheasant to fight a band of oni (a Japanese folkloric creature commonly equated to ogres in translations). The purple chain could be based on a shimenawa.
Name origin
Okidogi may be a combination of okie-dokie (variant of "okay") and dog.
Iineinu may be a combination of いいね ii ne (interjection to express approval) and 犬 inu (dog).