Nekomamushi

Master Nekomamushi is a feline mink and the guardian of the Whale Forest on Zou, dubbed the "Ruler of Night". He rules over the Mokomo Dukedom during the night hours, from 6:00 PM to 6:00 AM. He serves as a retainer for the Kozuki Family of Wano Country alongside Inuarashi. Alongside Inuarashi, he was once a member of the Whitebeard Pirates and Roger Pirates, serving under Kozuki Oden. For some reason, Pedro stated that the world was waiting for him and Inuarashi and so they must not be allowed to die.

Nekomamushi is a large, yellow feline mink with sharp teeth, claws, and a very thick striped tail. He has wild, bushy blonde hair resembling a lion's mane running around his neck and down his back, and has a scar running from the left side of his forehead down to his cheek. His outfit consists of a large robe with circle designs on it, a haramaki around his waist, sandals, and light colored pants and shirt. In addition, he smokes with a kiseru. While being tortured by Jack, he lost his left hand and part of the forearm. Nekomamushi is the other ruler of the Mokomo Dukedom, alongside Duke Inuarashi, and takes great pride in it by proclaiming the country to be his when the night comes during his first encounter with Jack. Unlike his former friend Inuarashi, Nekomamushi is aggressive and merciless. Inuarashi has described him as an "obstinate and stubborn imbecile", comparing him to Jack himself. Nekomamushi can be stubborn even when not angry, as he kept ignoring Chopper's orders to recuperate in order to have fun. He does not like to be ordered around, as shown when he stated that he went to bed of his own volition rather than on Chopper's orders, and describes himself as a "freedom-loving man". Despite his bravado, he is shown to be afraid of needles.

He took care of Bepo and the other Heart Pirates when they arrived on Zou, indicating a welcoming personality. He does not expect guests to help him defend Zou. He is also a firmly loyal person with an incredibly strong will, absolutely refusing to reveal that Raizo is on Zou despite extensive torture at the hands of Jack, and was fully willing to risk the kingdom's destruction to protect that friend. However, he does not look kindly upon intruders, going so far as to devour them if he ever sees one. Just like a cat, he likes to lick his paws, play with balls and cat toys, and eat catnip; at times, his feline behaviors can get the better of him. Unlike most cats, however, he loves taking baths. His favorite food is lasagne.[ Like many characters, he has a unique laugh, "Goronyanya". Nekomamushi is a servant of the Kozuki Family and will do anything to protect its members and fellow servants. He was willing to give up his life and kingdom in order to protect Raizo, a retainer of the family. He even made a truce with longtime rival Inuarashi in order to appease Momonosuke, the heir to the daimyo. However, it was hinted that Kozuki Oden is the cause of his feud with Inuarashi. As the leader of the Whale Forest Guardians, he has authority over the forest's inhabitants. During night time, he also becomes the main authority figure of the Mokomo Dukedom. His fighting ability is said to be equal to his daytime counterpart and former friend Inuarashi. Indeed, both were shown to be able to fight on even footing with one of a Yonko's three strongest subordinates for an extended period of time, further proving their combat abilities. His presence alone was enough to make Sanji feel confident of leaving his comrades to his protection from the Firetank Pirates, while Capone Bege felt wary of facing him despite the clear severe injuries that Nekomamushi had. Nekomamushi possesses incredible physical strength, as he was able to flip Jack over in his mammoth form. He is also extremely fast, as he was able to travel from the Whale Forest to Kurau City in a matter of seconds. Like all minks, he is capable of using Electro.