On Metru Nui, Akamu lived and worked in Onu-Metru.
He was captured by the Vahki under the command of Makuta Teridax, disguised as Turaga Dume. He was then forced into a Matoran Sphere but was later rescued by the Toa Metru and awakened on the shores of Naho Bay on the Isle of Mata Nui when the Toa Metru sacrificed their Toa Power and became Turaga Metru for the Matoran's sake.
Akamu was physically diminished in size and strength and he also forgot his memories of Metru Nui, as a result of his confinement in a Matoran Sphere. In spite of this, under Turaga Metru Whenua's direction, he helped in the construction of Onu-Koro, utilizing materials from Airships used by the Toa to transport the Matoran to Mata Nui.
In Onu-Koro, Akamu was a Crafter who created the Sluice, a tool used to collect Protodermis. He and the other Onu-Matoran left Onu-Koro temporarily when Bohrok invaded.
During The Rebuilding, Akamu was rebuilt into a stronger form. When the Rahkshi attacked Onu-Koro, Akamu was evacuated from the village with the other Matoran.
Return to Metru NuiEdit
Akamu later helped in the construction of Boats to facilitate his, and the other Matoran's return to Metru Nui. Once they had reached, the Matoran, including Akamu, worked on the city's reconstruction, until the usage of the Staff of Artakha restored Metru Nui to its' former glory.
After Teridax's defeat at the hands of Mata Nui, Akamu and the other Matoran evacuated to the reformed planet of Spherus Magna, where he now resides.