Kotu

Kotu is a Ga-MatoranGa-MatoranThe Water-element Matoran of Ga-Metru and Ga-Koro, exclusively female, who taught the schools of Metru Nui and crewed the boats and bridges of the Mata Nui coast. of Water who lived in Ga-KoroGa-KoroGa-Koro is a village on the island of Mata Nui, inhabited by the Ga-Matoran and associated with both Nokama and Gali. The settlement was formerly under the power of Teridax., making her home in the southern part of the village's town square alongside Okoth and Kailani. She later resided on Spherus MagnaSpherus MagnaA desert world of ancient conflict that became the merger point of the Matoran Universe and Bionicle's true endpoint..

She served as an attendant, one of the Matoran tasked with helping the Turaga of their village, working closely with Turaga NokamaNokamaNokama served as Toa Metru of Water, endured the Hordika mutation, and led Ga-Koro and later Ga-Metru as Turaga through three eras.. As a guard in the Ga-Koro Defense ForceGa-Koro Defense ForceThe Ga-Matoran militia that patrolled Ga-Wahi with bamboo poles, motorized boats, and tamed Keras, and held the village during the Bohrok War., she also took charge of the village gate. After the reconstruction of Ga-Koro, Nokama had Kotu close the gate and place the village on lockdown as a precaution while the Turaga was away.

When the BohrokBohrokHive-minded mechanical creatures designed to reshape worlds, the Bohrok represent a threat the Toa Mata never expected. swarms attacked, Kotu joined MackuMackuMacku was a Ga-Matoran of Metru Nui and later Ga-Koro, attendant to Turaga Nokama, Kolhii partner to Hahli at the championship at Ta-Koro, and a member of the Chronicler's Company. and HahliHahliA Ga-Matoran scholar who rose to become Chronicler of Mata Nui, then Toa Inika, then Toa Mahri of Water during the final crises of the Matoran Universe. in destroying the Ga-Koro Bridge to seal the village off from the invading Pahrak. During the same invasion she and Macku rescued NuparuNuparuAn Onu-Matoran engineer from Metru Nui who built the Boxor and rose to become a Toa of Earth despite no warrior destiny. and Damek from the water after a Pahrak flung them and their Boxor machines into the sea, though the machines themselves were lost.

In the aftermath of the Bohrok-KalBohrok-KalSix elite Bohrok designed to free the imprisoned Bahrag, they nearly defeated the Toa Nuva before the Toa turned their own powers against them.'s defeat, a Kolhii tournament was held, and it was speculated that Kotu and Macku would represent Ga-Koro on the village team. To the surprise of the Ga-Matoran, Hahli was chosen in Kotu's place, and went on to help win the championship.