Imuchakk

Imuchakk (イムチャック, Imuchakku) is a country situated in the northern lands. It is part of the Seven Seas Alliance. Imuchakk is currently ruled by Chief Rametoto.

Physical Characteristics
Notable features of the members of the Imuchakk tribe are their gigantic physique and blue-colored hair. It is also said that their skin are similar to that of a whale and that their body hair is capable of creating bubbles, thus reducing friction in the water. The Imuchakk also have eighty percent more protein in their muscles than the average human, making it possible for them to store oxygen in their body and hold their breath for over an hour. Because of these, they are said to be invincible in underwater combat.

Coming-of-Age Ritual
Male children of the Imuchakk tribe are given a childhood name that they will use throughout their childhood. However, upon reaching adult age, they must complete the coming-of-age ceremony and receive an adult name as proof of being a grown man. Until the completion of the ceremony, the tribe member will be considered "nameless". In order to complete the ceremony, one must defeat a type of Southern Creature called a Rampaging Unicorn.

According to Pipirika, by defeating a rampaging unicorn, one shows his proficiency in swimming, assessment of underwater situations and battle skills. Traditionally, Imuchakk only uses a standard harpoon to defeat the monster but may use other means they deem necessary. According to Hinahoho, the objective of the test is not to show off one's strength but to prove that one is a grown man by achieving victory and that victory can be achieved by a combination of strength and wisdom.

Mahrajan Festival
Mahrajan is the Imuchakk Tribe's traditional festival. It is a naming ceremony for the warriors who passed the Coming-of-Age Ritual and to show gratitude for the bounties they returned with.